Changed the semantic sources layout
Added the switch tab button
Corrected a bug in the navigation bar
Merge pull request #7 from tcomte/semanticSources

Improved the sources layout according to the last meeting
Corrected a bug in the transition
Merge pull request #8 from tcomte/semanticSources

Corrected a bug in the transition
Merge pull request #21 from tcomte/master

Changed the sources layout according to last meeting