UserParticipation test: make page initially owned by group instead of user, as creating a page owned by a user now automatically makes that user a 'contributor'
UserParticipation test: make page initially owned by group instead of user, as creating a page owned by a user now automatically makes that user a 'contributor'

elijh/crabgrass-core,elijh/crabgrass-core,elijh/crabgrass-core