added test_imports to make sure all packages successfully import
added open_api_page function
Add support for `equivs` kwarg on `convert_units_to`.
equivs -> equivalencies
fix validator for Quantity to accept arrays
added array quantity tests
fixes to support array operations of Quantity objects
updated tests to correspond to reality of numpy operations
PEP8 fixes
Make array * unit return a Quantity containing an array, not an array of Quantity objects.
Initial version of the astropy.constants docs
Merge pull request #8 from astrofrog/quantity/allow-arrays-fix

Make array * unit return a Quantity containing an array, not an array of quantites
moved copy function to be more visible and related PEP8 fixes
added isscalar to Quantity
Updated tests to exercise Quantity.isscalar
implemented __getitem__ and __len__ in quantity
added tests for indexing and len for Quantity
Fix for case where the Quantity value is a length-0 array - it is accepted but acts like an ordinary scalar for most purposes
Some WIP updates to the release procedure
A few more tweaks; added reminder to create a bug fix label on GitHub.