use release instead of version for docs

Merge commit 'remotes/mkszuba/pep8_typos'

Merge commit 'remotes/mkszuba/build_ready'

0.8 beta release

fix pyrex cdef

Merge branch 'issue005' of git://github.com/ctb/pygr into issue37

Pygr v0.7.1 final

protect against saving shadow itemClass and itemSliceClass in standar…

…d_getstate()

fixed typo

added NLMSASlice.__setitem__ to raise ValueError read-only message