Game statistic implementation without persistence
Merge branch 'master' of github.com:diterius/ExperienceServiceTest

Conflicts:
	ExperienceService/src/main/java/org/prg/domain/GameStatistic.java
	ExperienceService/src/main/java/org/prg/service/ExperienceService.java
	ExperienceService/src/main/java/org/prg/service/ExperienceServiceImpl.java
	ExperienceService/src/main/java/org/prg/service/GameStatisticProvider.java
	ExperienceService/src/main/java/org/prg/service/GameStatisticProviderImpl.java
	ExperienceService/src/test/java/org/prg/test/service/ExperienceServiceTest.java