Removed all references to CodeHintManager from Editor
Fixes after review
Merge remote-tracking branch 'upstream/master' into Issue-1617

Conflicts:
	src/editor/CodeHintManager.js
Fix for a module not loaded issue
Clean up _getFileExtension() method and fix all its callers
fixed unnecessary escaping
+fixes
getLastIndexOf > lastIndexOf
- unnecessary var decl
update web platform docs to include CSS region properties
czech language - sprint 30

updated
Typo in czech lang
Show one name as link if there's a github page.
New line for extension date.
Added isRelativePath public method.
Tweaked codemirror find-match look and feel.
Removed private methods and added documentation to the method.
Dialog list tweak.
Switched by to discs but made them muted.
Reverted test case file.