wait list manager added
membership test class name changed purposely
search wait list member added
test membership_project_to_team
test membership_team_to_project
test wait_list_project_to_team
test wait list
test wait_list_team_to_member
test wait_list_team_to_wait_member
test wait_list_wait_member_to_team
Merge pull request #50 from wikibootup/MtoMtest

team's membership & wait list manager, test code added