Releasing 0.6.1.

Reverting b24ae781a6738d44c2b11888cd71a982aaf7c03e

That commit removed the capitalization, preventing it from being
uploaded to pypi.
Merge branch 'release-0.6.1'
housecleaning for 0.7.0 release
skip one test for openjpeg versions < 1.5
clarification of wording
add testing mention of CentOS
skipping some tests on versions 1.3 and 1.4
minor doc mods
more doc updates
housecleaning for 0.7.0 release

Add testing mention of CentOS, windows.
Skipping some tests on versions 1.3 and 1.4
Minor doc mods.
For whatever stupid reason, np.log2(x) cannot be relied upon to be an
integer when x is a power of 2 ON WIN32!!!  All hail win32!
Better error message if array-style slice other than [:]
release 0.7.0
Merge branch 'release-0.7.0rc1'

Conflicts:
	docs/source/conf.py
	glymur/version.py
fix merge conflict
Merge branch 'master' into devel

Conflicts:
	CHANGES.txt
	docs/source/conf.py
	docs/source/roadmap.rst
	glymur/version.py