Merge pull request #14 from ricafett/master

Finished text input post-processing (Issue #1)
Removed global db connections.
Added mouse over and click in menu.
Fixed bug in CSS.
Updated mobile version of website.
Merge branch 'master' of https://github.com/cidles/poio-site
Added API function for supported languages (Issue #8)
Added API function for corpus files (Issue #6)
Merge remote-tracking branch 'cidles/master'