Remove dependency on six and enable sphinx tests on Python 3
Added sphinx build test and make it pass on Python 3
Implement @mdboom’s suggestion
Copy instead of symlink
Avoid warning due to matplotlib not being installed
Change encoding
Fix for Python 3.2
Fix issue with getting matplotlib intersphinx file
Added changelog entry [ci skip]
Merge pull request #96 from astrofrog/fix-six

Remove dependency on six and enable sphinx tests on Python 3