#1339 Tern is now started with its own function and not automatically after download.
Removed loading of external CodeMirror theme styles, they're already in the main css.
Clean the indentation and jshint of the files
Better Tern loading
Little tweaks
Moved specific css files outside main css
Merge pull request #1340 from jsbin/fix/1339-tern-loading

Fix/1339 tern loading