[FIX] i18n: available_languages pref was not respecting restrict_language, but does now. Unfortunately a lot of code was pasted all over the place (much of it not needed) so turned out to be more complicated than planned... also flush cache after changing these prefs so you can see the results (thanks Bernard)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48587 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] mobile: sync tpl changes from root

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48589 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] elfinder: Check the startGallery really exists and reset to default if not and post an error message (which doesn't appear until the next page refresh, but better than nothing?)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48592 b456876b-0849-0410-b77d-98878d47e9d5