Converted a few docstrings to Numpy-style formatting.
google code links fixed where possible. Some touchups here and there in language.
Merge pull request #164 from jrkerns/dev

A few Numpy-style docstrings and a few googlecode links fixed.
More documentation fixes and formatting.
fixed google code links in file headers and setup.py
Merge pull request #166 from jrkerns/dev

Fixes documentation links and addresses issue #163
Merge branch 'modernize' into dev
Fix tox.ini after merge.  Further comments on 'modernize' merge in this (full) commit message.

Note 'six' module used, but (a 'to do' item) a home-grown compat module could suffice. Also needs another look at the string/unicode compatibility conversions.
Edit .travis.yml to test under python 3.3 and 3.4
Merge branch 'modernize' into dev
Merge branch 'dev' into modernize