Bug fixes

need to work on autofire for weapons
Get all weapons working fully
Implement enemy factory and floating enemies
Reimplement final features

Implement shooting enemies upgrade screen survival mode
remove old files

Finally game is restored to previous capabilities (+ bugs fixed) in a
nice object oriented manner
changes to run on linux
update to run on linux
create main menu small bug fixes
update gitignore
git ignore take 2
Allow custom game names loaded and created
Create maze properly, ensure length of level is substantial
have standard enemies follow not on the edge
fix exploding shots
Merge pull request #1 from loewen-uwaterloo/master

fastforward develop