Bitlbee: updated for systemd; added more options like AuthMode
Bitlbee: hardcode username and configdir; homedir == configdir
Bitlbee: tabs to spaces
Bitlbee: create homedir; do not use /etc/bitlbee.conf
Merge pull request #128 from pSub/bitlbee

Bitlbee: updated for systemd; added more options like AuthMode