Do truncation check in __setslice__ for older numpy/python versions
Do truncation check in __setslice__ for older numpy/python versions

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