Add all parameters of the zscale function in the interval class
Add all parameters of the zscale function in the interval class

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