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
Applied tweaks.
Made comment consistent with rest of the coments.
Styled link focus state.
+fixes
getLastIndexOf > lastIndexOf
- unnecessary var decl
Fixed conflict.
Fixed conflicts.
Cleaned up spaces.
Fixed conflict.
Fixed SHAs.
czech language - sprint 30

updated
Typo in czech lang
Merge branch 'master' into jeff/pr4846