it is zero by definition, since this is the first pass

For multi-tile decode of all tiles, clear output image in case not all tiles are decoded (for example, there should be multiple

tiles in file, but there is only one tile stream.  fixes #65

broken.jpc has been removed from test suite, as it takes a very long time to decode (although Grok can decode it)

opj_j2k_decode_tile:  if marker is found after end of tile part data, and marker is not EOC or SOT, then only return

false if there are more tiles to read: otherwise don't worry about it.  fixes #58

Corrected all rate calculations for TERMALL mode - now we don't need to increment pass rates for TERMALL.

correction should be zero for TERMALL, since all necessary bits are output from registers during flush

If we don't do this, then setting from previous file will affect next file.

2. add one to pass rate at end of block encode (except for TERMALL), to ensure that it matches actual number of encoded bytes
3. use correct lazy length computation for pass rate correction factor (p 498 from T+M)