Merge branch 'master' of https://github.com/pdblad/CS5410 into enemyShipBranch
ufos are getting hit but they aren still getting drawn
fixed ufos staying on screen after hit problem, still need to workout when they show up.  I created a gameTimer variable and figured we could use that to keep track of how long the game has been going and then push the ufos into the enemyArray then
fixed ufo problem
Merge pull request #10 from pdblad/enemyShipBranch

Enemy ship branch