Supybot/limnoria: add service module
lightdm: remove unused reference to mesa drivers

I don't need them and llvm at all, for example.
Supybot service: failing to create stateDir in /var/lib
supybot.service: tidy up
Merge branch 'supybot'

Conflicts:
	modules/misc/ids.nix
Merge pull request #210 from cillianderoiste/master

Add Supybot (IRC bot) service
Add iodined, ip over dns daemon
Merge pull request #211 from offlinehacker/iodined

Add iodined, ip over dns daemon
Style fix
Increase memory for the VirtualBox image generator