GaimLog Backend updated

[Dan Willemsen <dan willemsen us>]

Hello everyone, I've updated the GaimLog Backend to support the
(somewhat) new gaim log format. It also has support for Contacts, which
in gaim lets you group multiple buddies together, this makes it so that
dashboard will show you the 5 latest conversations from anyone in the
same contact as the requested screenname.

The patch is here:
http://dan.willemsen.us/patches/dashboard-gaim.4.diff

I may take a look at beautifying the im log renderer later too, it could
look better in my opinion.

Dan Willemsen (Dan0430 on irc)