Add getAchievemt to GameFileStorage Class

And modify the delimiter used in properties file
Merge remote-tracking branch 'origin/master'

Conflicts:
	Gamefication/properties/achievements.properties
Merge remote-tracking branch 'origin/master'

Conflicts:
	Gamefication/properties/achievements.properties
Merge remote-tracking branch 'origin/master'

Conflicts:
	Gamefication/properties/achievements.properties