Added Library/* to gitignore
Implemented OOB, Score, End Of Round, & basic GUI

Implemented:
-Out of bounds (OOB) detection --> Collision with Ball and OOB triggers
not detecting (Jeff, help?)
-Score Keeping
-End of Round (resetting for next round)
-Very basic GUI for score display with GUI Skin
Implemented countdown round restart, dev option

-Restarting a new round now has a 3 second timer (no GUI representation
of timer yet, need textures)
-Escape now respawns the ball instantly (for development use)
Player movement now frozen during racket toss

When the player tosses their racket, X direction movement (left/right)
is disabled, as well as jumping. Y direction movement down is still
enabled though (so the player will always fall down after throwing their
racket). Movement in all directions is re-enabled as soon as the racket
returns home.
Implemented Jeff's fixes for ball physics, rackets
Character Box Collider 2D's are now triggers
Fixed a typo causing player 2 to never unfreeze

After throwing the racket, Player 2's movement and jumping was not being
re-enabled due to an extra "e" character in the call to UnfreezePlayer
Start & Stop Coroutine now called with string

Not IENumerator. Calling it with IENumerator was causing issues with
older versions of Unity (4.3.3)
Added scene
Merge pull request #34 from Murkantilism/denizDev

Merge Deniz's branch into dev. These changes include:
Added:
-OOB detection
-Score
-End of Round
-Round restart (with countdown)
-Player movement frozen during racket toss
-Jeff's fix for ball physics, rackets
-Player Box Collider 2D's are now triggers