Read input from controller

- now ignoring *.*~ files in git
- removed old UDP.py file that was from Trial Project
- controller.py now reads in input from controller (reads pushing up on
4 switches and reads LED switch)

Note: work done by both members of the A-Team (Shanmuga and Korey)
Merge branch 'master' of https://github.com/koreyconway/sysc3010