jQuery, Impromptu and Validator updates

Also removed unneeded file.
Impromptu, jGrowl updates
Select2 update
jQuery Modal update
CodeMirror update
jQuery UI update
Trying to fix conflicts
Trying to fix conflicts again
Putting back changes
Fixing impromptu conflicts
Fixing jgrowl conflicts
Merge pull request #958 from PirataNervo/feature-957

Update 3rd party libs #957