created user model
create rake skeleton
Merge pull request #1 from indigocode/User_Model

created user model
Pulling master
Merge branch 'master' of https://github.com/indigocode/walnut-flash-cards into User_Model
Created users model and migration
finsihed cards and round models
Merge pull request #2 from indigocode/Deck_Model

Deck model and migration complete. please review.
Merge remote-tracking branch 'origin/master' into cardroundmodel
Guess model and migration
Adding reference images
Merge remote-tracking branch 'origin/master'
Merge pull request #3 from indigocode/cardroundmodel

Cardroundmodel
Merge pull request #4 from indigocode/User_Model

User and Guess models and migrations
Updated Deck migration and model