treeview filter fix
wegas-widget with popup error message

*Adding popupListener at various level in DOM hierarchy
Merge branch 'master' of github.com:Heigvd/Wegas

# By Benjamin Gerber (4) and Francois-Xavier Aeberhard (1)
# Via Benjamin Gerber (2) and Francois-Xavier Aeberhard (2)
* 'master' of github.com:Heigvd/Wegas:
  Fix filter in gamemodel treeview Fix template game model selection
  Login translation and minor change
  Change blue of Wegas
  clean login widget
  proto login v3