Begin to rework the vocabulary UI
Continue work on Sessions and Sequences visuzalization
Restore callbacks in new Session UI
Add getSource() and getDestination() getters in Message models
Correction of xsd for Session
Fix error in Searchbar
Fix conflict in VocabularyController
Add getCouples() in Session to return all possible couples
When removing a message in vocabulary, make sure it also remove associated reference in sessions and symbols
Add a menuEntry CompareSessions
Allow dynamic switching of property panel according to the selected object (symbol, session or sequence)
Add addMessages() and removeMessage() in Session
Add better message handling in Vocabulary
Better handling of messages removing in contextual menu
Support session viewing
Allow colorization of session according to src and dst
Support byte-comparison of multiple sessions
Fix conflict in Session