Basic implementation of ‘daemonmap --help [command]’.

Help text needs some work.
Update messages*.pot.
In the alien spawn menu, always list granger (if enabled).

If advanced granger is locked while the player is not alive then the player
would only be able to spawn as dretch despite adv. granger being listed in
the menu (even if it's opened after adv. granger has been locked). This
workaround ensures that there's always a valid builder option.
Update unlockables info for dead players too.
Improve inactivity timeout handling.

Enable it for dead players. Idling players should be removed from the team
whether alive or dead.

Don't trigger timeout action if the player is in the spawn queue or if the
player is dead but there are no spawns for the team.
Remove debug code which sneaked in with the inactivity timeout changes.
One more cp → cp_tr.
Fix backface culling for directional lights
Fix light debug draw

It flickered in some cases ( e.g. human base )
Merge branch 'master' into librocket