update changelog for 1.1.2 and 1.0.9 releases
update changelog for 1.1.2 and 1.0.9 releases

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