Updated spanish language.
Updated languages.
also show related groups management on group profile page.
Merge branch 'master' of gitorious.org:lorea/relatedgroups
fix menu
Added @override keyword at some actions and views
Updated to Elgg 1.8.16.
Merge branch '1.8' of gitorious.org:lorea/relatedgroups into 1.8
Removed @override.
Bumped version 1.8.0
Merge branch 'release/1.8.0'