Mighty-1284P core updated for Arduino 1.0.6

Actually, regarding that novel of a thread, I was the first person, to my knowledge, to check through and "fix" about 18 of the libraries for use with the mega1284, save only the SD and maybe one other library. Then, the 1284-Revisioniste Group took off like gang-busters - what, like 500 posts - and decided to include the libraries in the new distribution, so I thought they'd have fixed the rest of them. Oh well.