Adding option to create unique column names with add_column() and add_columns() rather than raise exception
Adding option to create unique column names with add_column() and add_columns() rather than raise exception

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