Added "store" and "submit" commands to the command-line client.
Added a nosetest for the command line store method (and fixed something that the test caught).
Added unit test for submit method.
Merge pull request #59 from kaysoky/StoreSubmitCmd

Added "store" and "submit" commands to the command-line client.
Merge branch 'master' of https://github.com/Sage-Bionetworks/synapsePythonClient into DocStringUpdate