r779
increased vpl list from 16 to 32 slots.

r778
Added string terminator to Utilities.writeStringZ (may fix save data problems).
Added check for io seek set less than 0 ( Issue 41 ).
Added check for trying to free an unallocated FPL.
Added sasCore module (mostly unimplemented, but now we get better log messages).
Increased mpeg buffer cap from 1mb to 2mb (actual value is still unknown).
Fixed null pointer exception in save data init ( Issue 40 ).

ThreadMan:
- Stack setup changed (again). Apps crashing on k0 read/write may work now.
- Increased thread hog cycles (again).
- Refactored start and create thread.
- Renamed setEnabled to setThreadBanningEnabled (see r775).

r777
minor changes