renamed drp and dap to spectrum and properties, and added a categories list
renamed drp and dap to spectrum and properties, and added a categories list

bretthandrews/marvin,bretthandrews/marvin,sdss/marvin,bretthandrews/marvin,bretthandrews/marvin,albireox/marvin,albireox/marvin,albireox/marvin,albireox/marvin,sdss/marvin,sdss/marvin,sdss/marvin