Added level select screen, and added segues to all existing levels (level1 and tutorial).
Small test for commit ability
One quick quality of life change. Back button added to the level select screen.
Merge pull request #32 from zsweedyk/LevelSelectScreen

Merging level select screen
Changed all names for level 1 to level 2. Please use this version when adding levels in the future. Name changes in storyboards are evil. Trust me.
Merge pull request #33 from zsweedyk/Level1NameChange

changed name of level1 storyboard to level 2
Merge branch 'master' of https://github.com/zsweedyk/CS121F14S3_Team1 into Level3
Adding tests for level 3, cleaning up tests for level 2