chore: update dependencies and node version

package.json

@@ -20,38 +20,35 @@
   },
   "license": "MIT",
   "dependencies": {
-    "async": "^1.5.2",
-    "cookie-parser": "^1.3.2",
-    "debug": "^2.2.0",
-    "fs-extra": "^0.30.0",
-    "glob": "^7.0.0",
-    "lodash": "^4.5.1",
-    "loopback": "^3.23.2",
-    "loopback-boot": "^2.6.5",
-    "loopback-component-explorer": "^6.0.1",
-    "method-override": "^2.1.1",
-    "morgan": "^1.2.0",
+    "async": "^2.6.1",
+    "cookie-parser": "^1.4.3",
+    "debug": "^4.1.0",
+    "fs-extra": "^7.0.1",
+    "glob": "^7.1.3",
+    "lodash": "^4.17.11",
+    "loopback": "^3.24.0",
+    "loopback-boot": "^2.27.1",
+    "loopback-component-explorer": "^6.3.1",
+    "method-override": "^3.0.0",
+    "morgan": "^1.9.1",
     "ncp": "^2.0.0",
     "normalize-git-url": "^3.0.2",
-    "semver": "^5.1.0",
-    "serve-favicon": "^2.0.1",
-    "stable": "^0.1.5",
-    "strong-error-handler": "^3.0.0",
+    "semver": "^5.6.0",
+    "serve-favicon": "^2.5.0",
+    "stable": "^0.1.8",
+    "strong-error-handler": "^3.2.0",
     "strong-globalize": "^4.1.2",
-    "strong-wait-till-listening": "^1.0.0"
+    "strong-wait-till-listening": "^1.0.3"
   },
   "devDependencies": {
-    "better-stack-traces": "^1.0.1",
-    "bluebird": "^3.2.1",
+    "better-stack-traces": "^1.1.0",
+    "bluebird": "^3.5.3",
     "chai": "^1.10.0",
     "eslint": "^2.13.1",
     "eslint-config-loopback": "^2.0.0",
-    "grunt": "^1.0.0",
-    "grunt-docular": "~0.1.2",
-    "grunt-loopback-sdk-angular": "^1.2.0",
-    "mocha": "^2.4.5",
-    "mysql": "^2.4.2",
-    "read": "^1.0.5",
-    "supertest": "^1.2.0"
+    "mocha": "^5.2.0",
+    "mysql": "^2.16.0",
+    "read": "^1.0.7",
+    "supertest": "^3.3.0"
   }
 }

templates/projects/empty-server/data.js

@@ -14,7 +14,7 @@ template.package = {
   version: '1.0.0',
   main: 'server/server.js',
   engines: {
-    node: '>=4',
+    node: '>=6',
   },
   scripts: {
     lint: 'eslint .',