Add Kernel tests for exceptions and warnings
Add Kernel tests for exceptions and warnings

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