sdss/marvin: Marvin Beta 2.5.0

This release offers support for MPL-10. It also removes support for MPLs 4-6, and SPX, VOR10 DAP binning schemes in the web and via API access. Marvin still supports them in local file access mode. See What's New and the MPL-10 datamodel for more. Adds - support for MaNGA data release MPL-10 Removes - web / API support for MPLs 4, 5, 6 Removes - SPX and VOR10 binning schemes in MPLs 7-10, and DR15-16