first version of foldable user addon
foldable gorup-addons
small stle fix and up changelog
added missing changelogs
Merge branch 'master' into jag/useraddon-fold

Conflicts:
	main/samba/ChangeLog
	main/users/ChangeLog
show also username in treeview
user and group style (WIP)
Merge branch 'jag/useraddon-fold' of github.com:Zentyal/zentyal into jag/useraddon-fold
Merge branch 'master' into jag/useraddon-fold

Conflicts:
	main/users/ChangeLog
Merge branch 'jag/useraddon-fold' of github.com:Zentyal/zentyal into jag/useraddon-fold
Merge branch 'jag/useraddon-fold'

Conflicts:
	main/samba/ChangeLog
	main/users/ChangeLog