Fix boolean comparisons
Fix boolean comparisons

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