Removed unnecessary single file partial
First fixed version of single page editing
Removed duplicate code from SingleFileCtrl
Tag listings of files are now shown only if user chooses so
Duplicate tags are now removed autocomplete when adding tags to single file
Existing tags of a file are no longer provided by autocomplete
Added a placeholder for single file's tags if it doesn't have any yet
Removed unused argument from SingleFileCtrl
Tag listing directive can now update listing after editing
JSHint fixes for SingleFileCtrl
Changed show tag info for files default value to true