Add argparse to setup.py to fix dependency issue in py26
Merge pull request #7 from marselester/argparse-dependency-for-py26

Fixes ``argparse`` dependency issue in Python 2.6.

Thanks @marselester. Nice job with `setup.py`. I'll ask you another thing about `setup.py` soon :)
Merge branch 'master' of github.com:attilaolah/diffbot.py
more specific classifiers
add tests_require to setup.py
add py_modules to setup.py to include diffbot.py in sdist (issue #5)
re-word the readme
Merge branch 'master' into post-api