Removed empty placeholder headings under the 0.3.1 section
Removed empty placeholder headings under the 0.3.1 section

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