added behavior for roll 0, 0
added behavior for roll 0, 1
refactored assert roll
added Roll object
refactored builders
refactored has bonus to Roll object
moved rolling tests into a separate test clas
added strike bonus
added spare bonus
added behavior for two rolls no spare, no strike
added behavior for two rolls no spare, no strike
added behavior for two rolls with spare
Merge branch 'master' of github.com:MozaicWorks/KataLounge