modified some info messages so they're more helpful and removed some of the spammier debug ones
added category section for a.b.multimedia
worked tvrage postproc into main start.py
fixed extremely minor scan bug
added several new indexes recommended by dex, plus switched many to background indexing
automatically run categorisation after import, since they're usually a bit of a mess
moved index creation out of db so it's not being called every time a script runs, and automatically create all indexes during installation
added helper function to load nzb into dict
added some log output so you can actually tell when the script is sleeping