Initial work on H5A array glitch
More work on attribute data issue
Fix AttributeManager.create to accept dtype-compatible strings
Merge pull request #501 from andrewcollette/issue_498

Possible fix for attribute array-type issue
Add pkg-config to build
Added pkg-config to configure
Added pkgconfig to setup_requires
Added try/except for when pkg-config does not exist
Merge pull request #505 from aragilar/pkgconfig_setup_requires_version

Use pkg-config for builing/linking against hdf5 (take 2)