minor updates (even though I changed so much. What the.. )

- bugfixes on raidframes
- ready check not yet testet (with current functionality not even worth
it)
- removed party and boss frames (weren't working anyway)
- frames with buttons are now only buttons since they had the same size
(might change this back to get smaller click zones)
- removed some local globals (if that even makes any sense)
- raidframes have their own file now (doing it in one file is a pain.
Well, having more files will be a pain, too, i guess.)

Next up maybe another try on boss frames (they already worked at some
point) and I really want to recode the aura-watching