implemented tableview in people-vc and covered it with tests
corrected error with zero sections
Merge branch 'feature/PeopleScreen' of github.com:a-voronov/organizer into feature/PeopleScreen

Conflicts:
	Organizer/Classes/Presentation/PeopleScreen/PeopleView.m
	OrganizerTests/Classes/Presentation/PeopleScreen/PeopleViewSpec.m