page treeview

now waits for a page event before rendering
*bug fixes
+pageloader "contentUpdated" event
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Fix Y.Wegas.TabView.destructor
page edition : remove edition mode on page change

Prevent page not being editable after page change
Fix rogue callback issue in datasource
Merge branch 'HEAD' of git@github.com:Heigvd/Wegas.git
Close #170
Use login theme in lobby and editor
Fix game destruction issue
Set /rest/User/ order by name
Remove unused permissions in account serialization w/ Public Json View
Refactor TeamFacade createPlayer method
Fix popuplistener issue
StateMachine Integration Test
Fix issue in scope -> instance update
Fix serialization issue in variableinstance
Edit widget after adding

*Fix #196
missing correction due to previous datasource refactor
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Fix serialization issue in variableinstance
  Fix issue in scope -> instance update
Fix variable instance player scope
Fix old reference to yui 3.7.2
Merge branch 'HEAD' of git@github.com:Heigvd/Wegas.git
Fix #205 Variable treeview "empty" shown if collapsed