try to fix paste when select all
fix the bug of pasting after cmd+a
Merge branch 'master' into tf-fix-paste

Conflicts:
	Gruntfile.coffee
	lib/simditor-all.js
	lib/simditor-all.min.js
	lib/simditor.js
	lib/simditor.min.js
	site/assets/scripts/simditor-all.js
	site/assets/scripts/simditor-all.min.js
	src/inputManager.coffee
	src/simditor.coffee
fix pasting bug