ensure rotations work with scalar input.
ensure rotations work with scalar input.

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