add user_line
add user_location to user_line ressource
refactor steps for user_line
fix grammar in error messages
randomize ids used in tests for user_line
remove rendundant scenarios
fix error message. main_user and main_line are read-only
add missing prerequisite to scenario
add missing scenarios for fetching a user_line
fix wrong ids in scenarios
Adjust scenarios so that users/<id>/lines returns a collection
/users/<id>/lines now returns a collection
fix wrong error message
Merge branch 'user_line'