add large page size for user_roles
add large page size for user_roles

For projects with more than the default number of users that have roles on the project. We should probably just look at adding paging onto this page long term.
mrniaboc/Panoptes-Front-End,parrish/Panoptes-Front-End,alexbfree/Panoptes-Front-End,jelliotartz/Panoptes-Front-End,zooniverse/Panoptes-Front-End,alexbfree/Panoptes-Front-End,amyrebecca/Panoptes-Front-End,parrish/Panoptes-Front-End,amyrebecca/Panoptes-Front-End,fmnhExhibits/Panoptes-Front-End,amyrebecca/Panoptes-Front-End,fmnhExhibits/Panoptes-Front-End,alexbfree/Panoptes-Front-End,mrniaboc/Panoptes-Front-End,jelliotartz/Panoptes-Front-End,jelliotartz/Panoptes-Front-End,mrniaboc/Panoptes-Front-End,fmnhExhibits/Panoptes-Front-End,parrish/Panoptes-Front-End