Return if auth fails.

Prevents printout of further messages
Adds request as a dependency

Had to pip install requests to run
Merge pull request #2 from Svenito/dep-update

Adds request as a dependency
Merge pull request #1 from Svenito/auth-err

Return if auth fails.
Added setup.py (might be buggy)
Can't get install_requires to work. Removed
Update README