Check for root privileges

When running service start, stop or restart.
Check for root privileges
Update translations from transifex
Update translations with new strings
Fix root checking for clocksetup and reposetup
No need to extend path anymore

We're using sudo now and sbin dirs should be in path for members of the
wheel group.
No need to extend path anymore

We're using sudo now and sbin paths are part of PATH for members of the
wheel group.
Don't expand path and change translated strings in help message.

No need to expand PATH with sbin, since members of the wheel group
already do that.

Also, change the translated strings in the --help message to be easier
translatable. Unfortunately, we'll lose some translations this way.
Update translations from transifex
Update translations from transifex
Update translations with new strings
Update translations