ROI additions ported from master
Port IBA::IBAprep from master
ImageBufAlgo::fillholes_pp and oiiotool --fillholes

Fill in the parts of the image with alpha<1 with plausible smooth
interpolant of nearby pixels. This is great for hole filling as well as
extrapolation -- such as if you have a texture atlas with gaps between
pieces and want to fill in the rest of the image so that texture
sampling will filter nicely by not incorrectly drawing in black pixels
beyond the edge of the pieces.
Fix several typos in oiiotool with postpone_callback
Use platform variable instead of SP_OS in the branch where the latter may not be set
Strutil::extract_from_list_string
ImageBufAlgo::clamp and oiiotool --clamp
ImageBufAlgo::rangecompress()/rangexpand() compress the range of data
values in an image by keeping values <= 1.0 as they are but rescaling
values > 1.0 to be on a log scale (with a smooth transition between
them.
oiiotool --rangeexpand, --rangecompress
maketx --hicomp performs hilight compensation, a combination of range
compression/expansion and clamping negative values to zero, surrounding
every resize step.
DPX: properly set pixel aspect ratio for dpx write
Rebuild PDF docs
CHANGES, docs, and bump version for 1.1.10