Added all of the sounds
Remove .DS_Store files
#9 and #13: Implemented UI Element and UIElement subclasses
Created Adam branch and added plane class
#4 Implemented the Plane class with move method, no tests
#4 corrected and added plane class to entities.py
Remove build folder from repo
Stop build being included by git add
Minor changes to Plane class
Remove superfluous files
Updated entity class with gateway class
Update .gitignore
Set travis to only build and test master and production branches