Configured rspec and wrote one Meme test
added migration to have unique index on meme and voter
added uniqueness constraints on the model level for voter and meme
wrote updating meme scoring tests
Meme score is now correctly updated by up votes
configured filepicker.io, renamed meme controller to memes controller
user can now upload a meme and receive a success or error message
added test for model slug creation
implemented guard and refactored tests
resolved merge conflicts
resolved merge conflicts