adding basic tutorial functionality
Merge pull request #40 from ChristinaLK/tutorial

adding basic tutorial functionality
attaching images to cards
Merge branch 'master' of https://github.com/BernhardKonrad/SetGame
Merge pull request #41 from JeromeLefebvre/master

JeromeLefebvre:master
Adds ratingList ELO-style
Adds updateRatingsAI and uses rating in get_difficulties
Merge branch 'master' of https://github.com/BernhardKonrad/SetGame
Improving the AI system fixes 42
Merge pull request #43 from JeromeLefebvre/master

Improving the AI system fixes 42
trying to fix the endgame screen, now need to reinitialize card deck to restart game
Merge pull request #44 from ChristinaLK/endgame

trying to fix the endgame screen
various improvements to the AI functionality
Merge pull request #45 from JeromeLefebvre/master

JeromeLefebvre:master
addint images
Merge pull request #46 from JeromeLefebvre/master

JeromeLefebvre:master
tempory improvements to the images so that they have a normal/down state until the final images are ready
Merge pull request #47 from JeromeLefebvre/images

JeromeLefebvre:images
solved a conflict
We've integrated everything in Set.py in other files. screen.py needs to be renamed to main.py when creating phone apps