Added support for OpenJPEG 2.1.
Changed test for OpenJPEG 2.0
Oops.  Fixed a silly mistake.
Initialize openjpeg_version
Testing against newer version of OpenJPEG
Defer initialization of openjpeg_version
Update docs for OpenJPEG version
Merge from master, pre-unittest conversion
Merge pull request #681 from wiredfool/openjpeg_21

OpenJpeg 2.1