Added DB group creation
Set protocol's default password to avoid prompting anon users
Removed TODOs and expanded docstrings
Removed stupid isinstance(dict) hacks
Modified group lookups to return state as well
Modified irc_LIST to use RDB
WHO and WHOIS use RDB data
Merge pull request #106 from kzvezdarov/sharded-group

Group sharding & creation
Table entries are deleted, instead of dropping/creating tables (is faster)
Merge pull request #110 from kzvezdarov/initial-cluster-tests

Table entries are deleted, instead of dropping/creating tables (is faster)