Add basic game and possession class
Use european quarter length
Track current length as an instance variable
Extract game_end method
PlayerFactory#mass_create
Some squad checks
A really basic, pretty random match engine that just scores
Add basic benchmarking
move the shooting to the player
rake task adjusted to take number of simulations to run
Show average game score on simulation task
Make it a real random distribution and show good average score
some rebounding and some renaming
Merge basic gameplay into master