Adding astropy hosted intersphinx inventories as backup versions
Adding astropy hosted intersphinx inventories as backup versions

dpshelio/astropy-helpers,bsipocz/astropy-helpers,astropy/astropy-helpers,Cadair/astropy-helpers,bsipocz/astropy-helpers,Cadair/astropy-helpers,astropy/astropy-helpers,dpshelio/astropy-helpers,bsipocz/astropy-helpers