TravisCI: Enabled Python 2.6 testing
Merge pull request #39 from Turbo87/travis

TravisCI: Enabled Python 2.6 testing
Merge pull request #40 from Turbo87/pep8

Add pep8 validation to Travis build process
functions: Fixed return type docstring
Revert "shape: Fixed buffer usage for Python 3.x"

This reverts commit bdf9b786451340a22dc80699ef522df0f52c98a8.

This was not a solution since it fails on Python 2.6 with flake8.
shape: Added "noqa" comments to skip flake8 processing

This should fix the "undefined name" errors on Python 3.x