add spec examples for assignment#students_with_missing_binaries_on_team
add spec examples for assignment#students_with_missing_binaries_on_team

UM-USElab/gradecraft-development,UM-USElab/gradecraft-development,UM-USElab/gradecraft-development,UM-USElab/gradecraft-development,mkoon/gradecraft-development,mkoon/gradecraft-development,mkoon/gradecraft-development