In __mul__, __div__, convert strings to units before anything else
In __mul__, __div__, convert strings to units before anything else

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