Allow time format and scale strings to be case-insensitive
Restore compatibility with Python 3.2
Refactor wcs to use six
changed quantity repr to act more like ndarray's repr
change Quantity.__repr__ to use np.array2string
added tests for str/repr of array quantities
Merge pull request #1434 from eteq/quantity-better-repr

change quantity repr to act more like ndarray's repr
Merge pull request #1398 from astrofrog/fix-python32

Astropy will no longer install on Python 3.2 with latest version of ``markupsafe`` package
Remove units from the (unfortunately named) absorption distance
Correct behaviour of sqrt in units -> should return unit**0.5, not unit**-2
Merge pull request #1458 from mhvk/units-sqrt

sqrt in units -> should return unit**0.5, not unit**-2
Define percent as Unit(0.01), and ensure its representation is '%'
Ensure % is recognized in generic parser, as well as in compose()
Correction to not mess with the registry, remove testing statement, PEP8
Roundtrip for generic/CDS, exceptions for scaled dimensionless for vounit
Use is_effectively_unity to test for scale=0.01
Correct tests that changed now that '0.01' * Unit gives a unit
Fix bug where FITS and VOUnit unit parsers were not using the correct implementation of _parse_unit
Add tests that % is correctly interpreted by generic and CDS
Merge pull request #1411 from mdboom/wcs/six

Refactor wcs to use six