remove IntraPredMode from decoder context
move deblocking-flags to image context
alloc CTB-info in image context
moved SliceAddrRS to image context
moved SliceAddrRS to image context
moved SliceHeaderIndex to image context
move sao_info to image context
move CTB_info to image context
keep pointers to SPS and PPS in image context
made available_zscan independent of decoder context
check for image memory allocation errors
precompute last scan pos for coefficient decoding
cleanup coefficient decoding code
coefficient decoding simplification
simplify decoding of significant coefficient flags
further cleanup of significance flags decoding
CABAC now decodes fixed-length bypass codes in one step
add coefficient decoding comments
reorder bitfield members
reorder bitfield members