added ff2p and p2ff to jpeg_enc.h

gain shown when zz to rl_enc has blocks.
files committed:
jpeg_enc.h
progress.xls
removed blocks from zz to rl_encoder

gain back to original level.
functioning code.

make sure time is increased 2000000 works
progress
ignore eclipse stuff
calculations
Merge branch 'alberto'
use ff2p and p2ff converters in between blocks
cleanup