diff --git a/dist/js-yaml.js b/dist/js-yaml.js
index 89d43315..fe1c7dfb 100644
--- a/dist/js-yaml.js
+++ b/dist/js-yaml.js
@@ -1,4 +1,4 @@
-/* js-yaml 3.8.4 https://github.com/nodeca/js-yaml */(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.jsyaml = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/* js-yaml 3.9.0 https://github.com/nodeca/js-yaml */(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.jsyaml = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
 'use strict';
 
 
@@ -217,6 +217,7 @@ function State(options) {
   this.lineWidth    = options['lineWidth'] || 80;
   this.noRefs       = options['noRefs'] || false;
   this.noCompatMode = options['noCompatMode'] || false;
+  this.condenseFlow = options['condenseFlow'] || false;
 
   this.implicitTypes = this.schema.compiledImplicit;
   this.explicitTypes = this.schema.compiledExplicit;
@@ -586,7 +587,7 @@ function writeFlowSequence(state, level, object) {
   for (index = 0, length = object.length; index < length; index += 1) {
     // Write only valid elements.
     if (writeNode(state, level, object[index], false, false)) {
-      if (index !== 0) _result += ', ';
+      if (index !== 0) _result += ',' + (!state.condenseFlow ? ' ' : '');
       _result += state.dump;
     }
   }
@@ -646,7 +647,7 @@ function writeFlowMapping(state, level, object) {
 
     if (state.dump.length > 1024) pairBuffer += '? ';
 
-    pairBuffer += state.dump + ': ';
+    pairBuffer += state.dump + ':' + (state.condenseFlow ? '' : ' ');
 
     if (!writeNode(state, level, objectValue, false, false)) {
       continue; // Skip this pair because of invalid value.
@@ -1044,6 +1045,7 @@ function fromDecimalCode(c) {
 }
 
 function simpleEscapeSequence(c) {
+  /* eslint-disable indent */
   return (c === 0x30/* 0 */) ? '\x00' :
         (c === 0x61/* a */) ? '\x07' :
         (c === 0x62/* b */) ? '\x08' :
@@ -1070,8 +1072,10 @@ function charFromCodepoint(c) {
   }
   // Encode UTF-16 surrogate pair
   // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
-  return String.fromCharCode(((c - 0x010000) >> 10) + 0xD800,
-                             ((c - 0x010000) & 0x03FF) + 0xDC00);
+  return String.fromCharCode(
+    ((c - 0x010000) >> 10) + 0xD800,
+    ((c - 0x010000) & 0x03FF) + 0xDC00
+  );
 }
 
 var simpleEscapeCheck = new Array(256); // integer, for fast access
@@ -1203,9 +1207,7 @@ function captureSegment(state, start, end, checkJson) {
     _result = state.input.slice(start, end);
 
     if (checkJson) {
-      for (_position = 0, _length = _result.length;
-           _position < _length;
-           _position += 1) {
+      for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
         _character = _result.charCodeAt(_position);
         if (!(_character === 0x09 ||
               (0x20 <= _character && _character <= 0x10FFFF))) {
@@ -2323,9 +2325,7 @@ function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact
 
   if (state.tag !== null && state.tag !== '!') {
     if (state.tag === '?') {
-      for (typeIndex = 0, typeQuantity = state.implicitTypes.length;
-           typeIndex < typeQuantity;
-           typeIndex += 1) {
+      for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
         type = state.implicitTypes[typeIndex];
 
         // Implicit resolving is not allowed for non-scalar types, and '?'
@@ -2514,6 +2514,10 @@ function loadDocuments(input, options) {
 function loadAll(input, iterator, options) {
   var documents = loadDocuments(input, options), index, length;
 
+  if (typeof iterator !== 'function') {
+    return documents;
+  }
+
   for (index = 0, length = documents.length; index < length; index += 1) {
     iterator(documents[index]);
   }
@@ -2534,7 +2538,11 @@ function load(input, options) {
 
 
 function safeLoadAll(input, output, options) {
-  loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+  if (typeof output === 'function') {
+    loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+  } else {
+    return loadAll(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+  }
 }
 
 
diff --git a/dist/js-yaml.min.js b/dist/js-yaml.min.js
index f30dea71..d19203fd 100644
--- a/dist/js-yaml.min.js
+++ b/dist/js-yaml.min.js
@@ -1 +1 @@
-!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).jsyaml=e()}}(function(){return function e(t,n,i){function r(a,s){if(!n[a]){if(!t[a]){var c="function"==typeof require&&require;if(!s&&c)return c(a,!0);if(o)return o(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var l=n[a]={exports:{}};t[a][0].call(l.exports,function(e){var n=t[a][1][e];return r(n||e)},l,l.exports,e,t,n,i)}return n[a].exports}for(var o="function"==typeof require&&require,a=0;a<i.length;a++)r(i[a]);return r}({1:[function(e,t,n){"use strict";function i(e){return function(){throw new Error("Function "+e+" is deprecated and cannot be used.")}}var r=e("./js-yaml/loader"),o=e("./js-yaml/dumper");t.exports.Type=e("./js-yaml/type"),t.exports.Schema=e("./js-yaml/schema"),t.exports.FAILSAFE_SCHEMA=e("./js-yaml/schema/failsafe"),t.exports.JSON_SCHEMA=e("./js-yaml/schema/json"),t.exports.CORE_SCHEMA=e("./js-yaml/schema/core"),t.exports.DEFAULT_SAFE_SCHEMA=e("./js-yaml/schema/default_safe"),t.exports.DEFAULT_FULL_SCHEMA=e("./js-yaml/schema/default_full"),t.exports.load=r.load,t.exports.loadAll=r.loadAll,t.exports.safeLoad=r.safeLoad,t.exports.safeLoadAll=r.safeLoadAll,t.exports.dump=o.dump,t.exports.safeDump=o.safeDump,t.exports.YAMLException=e("./js-yaml/exception"),t.exports.MINIMAL_SCHEMA=e("./js-yaml/schema/failsafe"),t.exports.SAFE_SCHEMA=e("./js-yaml/schema/default_safe"),t.exports.DEFAULT_SCHEMA=e("./js-yaml/schema/default_full"),t.exports.scan=i("scan"),t.exports.parse=i("parse"),t.exports.compose=i("compose"),t.exports.addConstructor=i("addConstructor")},{"./js-yaml/dumper":3,"./js-yaml/exception":4,"./js-yaml/loader":5,"./js-yaml/schema":7,"./js-yaml/schema/core":8,"./js-yaml/schema/default_full":9,"./js-yaml/schema/default_safe":10,"./js-yaml/schema/failsafe":11,"./js-yaml/schema/json":12,"./js-yaml/type":13}],2:[function(e,t,n){"use strict";function i(e){return void 0===e||null===e}function r(e){return"object"==typeof e&&null!==e}function o(e){return Array.isArray(e)?e:i(e)?[]:[e]}function a(e,t){var n,i,r,o;if(t)for(n=0,i=(o=Object.keys(t)).length;n<i;n+=1)e[r=o[n]]=t[r];return e}function s(e,t){var n,i="";for(n=0;n<t;n+=1)i+=e;return i}function c(e){return 0===e&&Number.NEGATIVE_INFINITY===1/e}t.exports.isNothing=i,t.exports.isObject=r,t.exports.toArray=o,t.exports.repeat=s,t.exports.isNegativeZero=c,t.exports.extend=a},{}],3:[function(e,t,n){"use strict";function i(e,t){var n,i,r,o,a,s,c;if(null===t)return{};for(n={},r=0,o=(i=Object.keys(t)).length;r<o;r+=1)a=i[r],s=String(t[a]),"!!"===a.slice(0,2)&&(a="tag:yaml.org,2002:"+a.slice(2)),(c=e.compiledTypeMap.fallback[a])&&L.call(c.styleAliases,s)&&(s=c.styleAliases[s]),n[a]=s;return n}function r(e){var t,n,i;if(t=e.toString(16).toUpperCase(),e<=255)n="x",i=2;else if(e<=65535)n="u",i=4;else{if(!(e<=4294967295))throw new _("code point within a string may not be greater than 0xFFFFFFFF");n="U",i=8}return"\\"+n+F.repeat("0",i-t.length)+t}function o(e){this.schema=e.schema||N,this.indent=Math.max(1,e.indent||2),this.skipInvalid=e.skipInvalid||!1,this.flowLevel=F.isNothing(e.flowLevel)?-1:e.flowLevel,this.styleMap=i(this.schema,e.styles||null),this.sortKeys=e.sortKeys||!1,this.lineWidth=e.lineWidth||80,this.noRefs=e.noRefs||!1,this.noCompatMode=e.noCompatMode||!1,this.implicitTypes=this.schema.compiledImplicit,this.explicitTypes=this.schema.compiledExplicit,this.tag=null,this.result="",this.duplicates=[],this.usedDuplicates=null}function a(e,t){for(var n,i=F.repeat(" ",t),r=0,o=-1,a="",s=e.length;r<s;)-1===(o=e.indexOf("\n",r))?(n=e.slice(r),r=s):(n=e.slice(r,o+1),r=o+1),n.length&&"\n"!==n&&(a+=i),a+=n;return a}function s(e,t){return"\n"+F.repeat(" ",e.indent*t)}function c(e,t){var n,i;for(n=0,i=e.implicitTypes.length;n<i;n+=1)if(e.implicitTypes[n].resolve(t))return!0;return!1}function u(e){return e===q||e===D}function l(e){return 32<=e&&e<=126||161<=e&&e<=55295&&8232!==e&&8233!==e||57344<=e&&e<=65533&&65279!==e||65536<=e&&e<=1114111}function p(e){return l(e)&&65279!==e&&e!==H&&e!==Q&&e!==X&&e!==te&&e!==ie&&e!==V&&e!==P}function f(e){return l(e)&&65279!==e&&!u(e)&&e!==G&&e!==z&&e!==V&&e!==H&&e!==Q&&e!==X&&e!==te&&e!==ie&&e!==P&&e!==B&&e!==$&&e!==Y&&e!==ne&&e!==Z&&e!==K&&e!==R&&e!==W&&e!==J&&e!==ee}function d(e,t,n,i,r){var o,a,s=!1,c=!1,d=-1!==i,h=-1,m=f(e.charCodeAt(0))&&!u(e.charCodeAt(e.length-1));if(t)for(o=0;o<e.length;o++){if(a=e.charCodeAt(o),!l(a))return le;m=m&&p(a)}else{for(o=0;o<e.length;o++){if((a=e.charCodeAt(o))===U)s=!0,d&&(c=c||o-h-1>i&&" "!==e[h+1],h=o);else if(!l(a))return le;m=m&&p(a)}c=c||d&&o-h-1>i&&" "!==e[h+1]}return s||c?" "===e[0]&&n>9?le:c?ue:ce:m&&!r(e)?ae:se}function h(e,t,n,i){e.dump=function(){function r(t){return c(e,t)}if(0===t.length)return"''";if(!e.noCompatMode&&-1!==oe.indexOf(t))return"'"+t+"'";var o=e.indent*Math.max(1,n),s=-1===e.lineWidth?-1:Math.max(Math.min(e.lineWidth,40),e.lineWidth-o),u=i||e.flowLevel>-1&&n>=e.flowLevel;switch(d(t,u,e.indent,s,r)){case ae:return t;case se:return"'"+t.replace(/'/g,"''")+"'";case ce:return"|"+m(t,e.indent)+g(a(t,o));case ue:return">"+m(t,e.indent)+g(a(y(t,s),o));case le:return'"'+v(t)+'"';default:throw new _("impossible error: invalid scalar style")}}()}function m(e,t){var n=" "===e[0]?String(t):"",i="\n"===e[e.length-1];return n+(i&&("\n"===e[e.length-2]||"\n"===e)?"+":i?"":"-")+"\n"}function g(e){return"\n"===e[e.length-1]?e.slice(0,-1):e}function y(e,t){for(var n,i,r=/(\n+)([^\n]*)/g,o=function(){var n=e.indexOf("\n");return n=-1!==n?n:e.length,r.lastIndex=n,x(e.slice(0,n),t)}(),a="\n"===e[0]||" "===e[0];i=r.exec(e);){var s=i[1],c=i[2];n=" "===c[0],o+=s+(a||n||""===c?"":"\n")+x(c,t),a=n}return o}function x(e,t){if(""===e||" "===e[0])return e;for(var n,i,r=/ [^ ]/g,o=0,a=0,s=0,c="";n=r.exec(e);)(s=n.index)-o>t&&(i=a>o?a:s,c+="\n"+e.slice(o,i),o=i+1),a=s;return c+="\n",e.length-o>t&&a>o?c+=e.slice(o,a)+"\n"+e.slice(a+1):c+=e.slice(o),c.slice(1)}function v(e){for(var t,n,i="",o=0;o<e.length;o++)t=e.charCodeAt(o),i+=!(n=re[t])&&l(t)?e[o]:n||r(t);return i}function A(e,t,n){var i,r,o="",a=e.tag;for(i=0,r=n.length;i<r;i+=1)j(e,t,n[i],!1,!1)&&(0!==i&&(o+=", "),o+=e.dump);e.tag=a,e.dump="["+o+"]"}function b(e,t,n,i){var r,o,a="",c=e.tag;for(r=0,o=n.length;r<o;r+=1)j(e,t+1,n[r],!0,!0)&&(i&&0===r||(a+=s(e,t)),e.dump&&U===e.dump.charCodeAt(0)?a+="-":a+="- ",a+=e.dump);e.tag=c,e.dump=a||"[]"}function w(e,t,n){var i,r,o,a,s,c="",u=e.tag,l=Object.keys(n);for(i=0,r=l.length;i<r;i+=1)s="",0!==i&&(s+=", "),a=n[o=l[i]],j(e,t,o,!1,!1)&&(e.dump.length>1024&&(s+="? "),s+=e.dump+": ",j(e,t,a,!1,!1)&&(c+=s+=e.dump));e.tag=u,e.dump="{"+c+"}"}function C(e,t,n,i){var r,o,a,c,u,l,p="",f=e.tag,d=Object.keys(n);if(!0===e.sortKeys)d.sort();else if("function"==typeof e.sortKeys)d.sort(e.sortKeys);else if(e.sortKeys)throw new _("sortKeys must be a boolean or a function");for(r=0,o=d.length;r<o;r+=1)l="",i&&0===r||(l+=s(e,t)),c=n[a=d[r]],j(e,t+1,a,!0,!0,!0)&&((u=null!==e.tag&&"?"!==e.tag||e.dump&&e.dump.length>1024)&&(e.dump&&U===e.dump.charCodeAt(0)?l+="?":l+="? "),l+=e.dump,u&&(l+=s(e,t)),j(e,t+1,c,!0,u)&&(e.dump&&U===e.dump.charCodeAt(0)?l+=":":l+=": ",p+=l+=e.dump));e.tag=f,e.dump=p||"{}"}function k(e,t,n){var i,r,o,a,s,c;for(o=0,a=(r=n?e.explicitTypes:e.implicitTypes).length;o<a;o+=1)if(((s=r[o]).instanceOf||s.predicate)&&(!s.instanceOf||"object"==typeof t&&t instanceof s.instanceOf)&&(!s.predicate||s.predicate(t))){if(e.tag=n?s.tag:"?",s.represent){if(c=e.styleMap[s.tag]||s.defaultStyle,"[object Function]"===T.call(s.represent))i=s.represent(t,c);else{if(!L.call(s.represent,c))throw new _("!<"+s.tag+'> tag resolver accepts not "'+c+'" style');i=s.represent[c](t,c)}e.dump=i}return!0}return!1}function j(e,t,n,i,r,o){e.tag=null,e.dump=n,k(e,n,!1)||k(e,n,!0);var a=T.call(e.dump);i&&(i=e.flowLevel<0||e.flowLevel>t);var s,c,u="[object Object]"===a||"[object Array]"===a;if(u&&(c=-1!==(s=e.duplicates.indexOf(n))),(null!==e.tag&&"?"!==e.tag||c||2!==e.indent&&t>0)&&(r=!1),c&&e.usedDuplicates[s])e.dump="*ref_"+s;else{if(u&&c&&!e.usedDuplicates[s]&&(e.usedDuplicates[s]=!0),"[object Object]"===a)i&&0!==Object.keys(e.dump).length?(C(e,t,e.dump,r),c&&(e.dump="&ref_"+s+e.dump)):(w(e,t,e.dump),c&&(e.dump="&ref_"+s+" "+e.dump));else if("[object Array]"===a)i&&0!==e.dump.length?(b(e,t,e.dump,r),c&&(e.dump="&ref_"+s+e.dump)):(A(e,t,e.dump),c&&(e.dump="&ref_"+s+" "+e.dump));else{if("[object String]"!==a){if(e.skipInvalid)return!1;throw new _("unacceptable kind of an object to dump "+a)}"?"!==e.tag&&h(e,e.dump,t,o)}null!==e.tag&&"?"!==e.tag&&(e.dump="!<"+e.tag+"> "+e.dump)}return!0}function I(e,t){var n,i,r=[],o=[];for(S(e,r,o),n=0,i=o.length;n<i;n+=1)t.duplicates.push(r[o[n]]);t.usedDuplicates=new Array(i)}function S(e,t,n){var i,r,o;if(null!==e&&"object"==typeof e)if(-1!==(r=t.indexOf(e)))-1===n.indexOf(r)&&n.push(r);else if(t.push(e),Array.isArray(e))for(r=0,o=e.length;r<o;r+=1)S(e[r],t,n);else for(r=0,o=(i=Object.keys(e)).length;r<o;r+=1)S(e[i[r]],t,n)}function O(e,t){var n=new o(t=t||{});return n.noRefs||I(e,n),j(n,0,e,!0,!0)?n.dump+"\n":""}function E(e,t){return O(e,F.extend({schema:M},t))}var F=e("./common"),_=e("./exception"),N=e("./schema/default_full"),M=e("./schema/default_safe"),T=Object.prototype.toString,L=Object.prototype.hasOwnProperty,D=9,U=10,q=32,Y=33,R=34,P=35,W=37,B=38,K=39,$=42,H=44,G=45,V=58,Z=62,z=63,J=64,Q=91,X=93,ee=96,te=123,ne=124,ie=125,re={};re[0]="\\0",re[7]="\\a",re[8]="\\b",re[9]="\\t",re[10]="\\n",re[11]="\\v",re[12]="\\f",re[13]="\\r",re[27]="\\e",re[34]='\\"',re[92]="\\\\",re[133]="\\N",re[160]="\\_",re[8232]="\\L",re[8233]="\\P";var oe=["y","Y","yes","Yes","YES","on","On","ON","n","N","no","No","NO","off","Off","OFF"],ae=1,se=2,ce=3,ue=4,le=5;t.exports.dump=O,t.exports.safeDump=E},{"./common":2,"./exception":4,"./schema/default_full":9,"./schema/default_safe":10}],4:[function(e,t,n){"use strict";function i(e,t){Error.call(this),Error.captureStackTrace?Error.captureStackTrace(this,this.constructor):this.stack=(new Error).stack||"",this.name="YAMLException",this.reason=e,this.mark=t,this.message=(this.reason||"(unknown reason)")+(this.mark?" 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