Merge branch 'master' into devel
Not trying to running opj_version upon import anymore when no library.

This should allow us to warn but not error out when neither library is
present.  We should be able to retrieve metadata on such configurations.
pep8 work
Prepping for 0.2.7 release.
Added warning when neither library found, monkey-patched version.

Did some things I'm not proud of...  Should revisit this.
Finalizing for 0.2.7 release.
Merge branch 'release-0.2.7'