FragmentControl/Loader should not lowercase paths (every time), affecting unit tests in Linux

Fixes #155
Merge branch 'master' of github.com:winjs/winjs
Merge branch 'master' of github.com:winjs/winjs
Adding missing toLowerCase() on WinJS.UI.Pages._remove
removing unncessary tolowercase + adding comment.
Adding 3 new symbols to symbols.ttf

Fixes #111 and #23