[calc] Remove unneeded admin-only restriction on .py
[version] Use actual version number when asking for version

i.e. CTCP and .version. CTCP VERSION no longer gives commit data, .version will give it if available.
[core] Update version number in __init__ to 3.1.2
[info] Remove .stats command
[core] Remove willie.stats
[find] Use willie.memory to solve issue #163

Also, generally clean up the code a bit
[version] Fix error in CTCP reply
[find] Fix error when suggestiong a correction to unknown user

Issue #170
[coretasks] Rewrite oplist MODE handling

Fixes issue #155, or at least makes it a different error message.
[coretasks] Fixed op update on NICK for non-lowercase nicks
[bugzilla] Initial work on a bugzilla module

Issue #116
[find] Fix returning even when there is conversation to look at.
[find] Add missing re import
[bugzilla] Move to XML to support more trackers

Issue #116
[docs] Start work on a manpage per issue #154
[isup] Use our own web stuff to see if sites are up, rather than scraping isup.me
[clock, adminchannel] Fix use of deprecated functions
[docs] Finish up man page
[coretasks] Add a debug msg and PM to owner when bot's nick changes

Issue #139
[weather] Add examples for .weather and .setlocation