oiiotool --info now recognizes --metamatch and --no-metamatch
These control which metadata are or are not printed with oiiotool --info -v.

--metamatch is followed by a regular expression showing which metadata
to print (the rest will be excluded from output).
--no-metamatch is followed by a regular expression showing which metadata
NOT to suppress (the rest will be printed).
It's probably not very wise or intuitive to use both together.
Allow test output to exclude certain metadata when printing image info.

This uses the --no-metamatch option recently added to oiiotool.
This is really handy for certain tests that involve dumping oiiotool --info,
to simply make it not print the fields that might change from run to run
(like DateTime), or release to realase (like Software) and thus make
spurious testsuite failures.
Fix minor bugs that let IBA::fixNonFinite work properly with 'half' images.
Add testsuite for maketx