remove pretty old backwards-compatibility symlinks of cron-files, noone should need them anymore

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
make changing default theme in settings recurse through customers and admins if changing themes for them is disallowed, fixes #1233

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
fix php-fcgi starter script for nginx/php, thx to Witalij from Aixit GmbH

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>