another "this is unnecessary" change, obviously impacting all the
modules that override __init__ as well as the base class. again, they
can use the DrBotIRC instance for anything, which is (with one
exception) only for add/remove_global_handler, which i'm planning on
working my way off of anyway
obviously this means all of the modules changed to accomodate. this is
one of many steps to reduce the number of times we pass connections and
servers and other such info around, when it's mostly unnecessary because
modules have a reference to DrBotIRC
WARNING!
there's no going back now. this change is *huge* but it was overdue.
WARNING!
the database backend is now mysql. modules that should use a database
but don't yet were left untouched, they'll come later. scripts haven't
been converted yet, though i'm pretty sure i'll need to soon.
while i was going through everything, connection/cursor idioms were
cleaned up, as were a bunch of log messages and exception handling. this
change is so gross i'm happy things appear to be working, which is
the case --- all modules are lightly tested.