change Vehicles class property
add class car
change detail page view
add class motorcycle
add motorcycle to to the list
add class truck
add some trucks to the list
Merge branch 'feature-motorcycle' into develop
Merge branch 'feature-truck' into develop

Conflicts:
	Vehicles.xcodeproj/project.pbxproj
	Vehicles/VehicleListTableViewController.m
bump version to v1.1
Merge branch 'release-1.1'