Move select2 files to subfolder

Include select2's license (MIT), make clear it's not ours, better grep-ing

Makefile

@@ -21,7 +21,7 @@ modules = modules/twinkleconfig.js \
 		  modules/friendlytalkback.js \
 		  modules/friendlywelcome.js
 
-deploy: twinkle.js twinkle.css twinkle-pagestyles.css morebits.js morebits.css select2.min.js select2.min.css $(modules)
+deploy: twinkle.js twinkle.css twinkle-pagestyles.css morebits.js morebits.css select2/select2.min.js select2/select2.min.css $(modules)
 	./sync.pl ${ARGS} --deploy $^
 
 .PHONY: deploy all

select2/select2-LICENSE.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2012-2017 Kevin Brown, Igor Vaynberg, and Select2 contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

sync.pl

@@ -324,8 +324,8 @@ sub saltNPepa {
   twinkle-pagestyles.css MediaWiki:Gadget-Twinkle-pagestyles.css
   morebits.js MediaWiki:Gadget-morebits.js
   morebits.css MediaWiki:Gadget-morebits.css
-  select2.min.js MediaWiki:Gadget-select2.min.js
-  select2.min.css MediaWiki:Gadget-select2.min.css
+  select2/select2.min.js MediaWiki:Gadget-select2.min.js
+  select2/select2.min.css MediaWiki:Gadget-select2.min.css
   modules/twinklearv.js MediaWiki:Gadget-twinklearv.js
   modules/twinklebatchdelete.js MediaWiki:Gadget-twinklebatchdelete.js
   modules/twinklebatchprotect.js MediaWiki:Gadget-twinklebatchprotect.js