refactoring submission file specs that were testing filename formatting through the url
refactoring submission file specs that were testing filename formatting through the url

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