Add Travis-CI job for python2.6.
Add Greg to Authors list in README.
Add testing crumbs section to README.

Testing crumbs is quite easy, simply run flake8 and nosetests but that
wasn't documented anywhere.
Update ez_setup.py script.
Set setuptools version in new ez_setup script.

The new ez_setup script assumes the non-existent setuptools-3.4.5 is
available.  We make it follow Gentoo convention and use their stable
version (0.8).
Use string literal for setuptools version.
Add COPYING and README improvements.

I've streamlined the README to provide the bare minimum information to
get started.  The new documentation style should fill in any details
once it's complete.
Updated docstrings for crumbs.

The new docstrings should be much easier to read and provide a more
comprhensive set of information.  They still need edits before a new
release is cut but they are ready for review.
Update copyright years for modified files.
Edit documentation in docstrings and README.