Added a has_user_bounding_box property analogous to has_user_inverse
Added a has_user_bounding_box property analogous to has_user_inverse

funbaker/astropy,DougBurke/astropy,lpsinger/astropy,tbabej/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,stargaser/astropy,pllim/astropy,bsipocz/astropy,stargaser/astropy,kelle/astropy,StuartLittlefair/astropy,funbaker/astropy,MSeifert04/astropy,kelle/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,DougBurke/astropy,dhomeier/astropy,dhomeier/astropy,mhvk/astropy,joergdietrich/astropy,tbabej/astropy,StuartLittlefair/astropy,saimn/astropy,lpsinger/astropy,mhvk/astropy,mhvk/astropy,AustereCuriosity/astropy,joergdietrich/astropy,tbabej/astropy,larrybradley/astropy,astropy/astropy,tbabej/astropy,larrybradley/astropy,pllim/astropy,joergdietrich/astropy,joergdietrich/astropy,larrybradley/astropy,larrybradley/astropy,tbabej/astropy,lpsinger/astropy,bsipocz/astropy,MSeifert04/astropy,saimn/astropy,dhomeier/astropy,funbaker/astropy,kelle/astropy,astropy/astropy,saimn/astropy,AustereCuriosity/astropy,stargaser/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,larrybradley/astropy,pllim/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,pllim/astropy,StuartLittlefair/astropy,bsipocz/astropy,saimn/astropy,saimn/astropy,kelle/astropy,funbaker/astropy,stargaser/astropy,DougBurke/astropy,AustereCuriosity/astropy,dhomeier/astropy,lpsinger/astropy,mhvk/astropy,kelle/astropy,joergdietrich/astropy,dhomeier/astropy,astropy/astropy,mhvk/astropy,astropy/astropy,DougBurke/astropy,AustereCuriosity/astropy,astropy/astropy,pllim/astropy,AustereCuriosity/astropy