Added dependency explaination in readme.
Added equality example.
Added python 3 to test runtime.
Removed standardlib packages.
Added tox to run tests on multiple envs.
Added python3 support.

Although I am not really happy, with how the comparisons works
right now.
Merge pull request #6 from cknv/python-3

Added python 3 to test runtime.
Now with decent grammar.
Merge pull request #5 from cknv/dependency-in-readme

Added dependency explaination in readme.