Change Option Group style so they are more well defined.
Change Option Group style so they are more well defined.

This matches Chosen more closely to standard HTML Selects and makes
groups easier to read.

landonb/chosen,itfrogs/chosen,arkhi/chosen,BlaZeX/chosen,chryse/chosen,ilyes14/chosen,raphaelcruz/chosen,mengjuer/chosen,mubassirhayat/chosen,redrambles/chosen,tleish/chosen,cjc343/chosen,micgro42/chosen,ixiom/chosen,bryankaplan/chosen,bduncan-vm/chosen,Burick/chosen,brees01/chosen,claimsmall/chosen,sunkanmi-akintoye/chosen,harikt/chosen,cjc343/chosen,bryankaplan/chosen,Moykn/chosen,xiaomiemie/chosen,upcesar/chosen,sunkanmi-akintoye/chosen,iamcal/chosen,therebelrobot/chosen,glasscubes/chosen,raphaelcruz/chosen,taracila/chosen,claimsmall/chosen,raphaelcruz/chosen,kaviarasankk/chosen,bbqsrc/chosen,liorch88/chosen,kaviarasankk/chosen,jemmeliCss/chosen,taracila/chosen,liorch88/chosen,sunkanmi-akintoye/chosen,laantorchaweb/chosen,chandre21cn/chosen,ansiz/chosen,codesharpdev/chosen,kaviarasankk/chosen,iamcal/chosen,thewulf7/chosen,bbqsrc/chosen,upcesar/chosen,SugarOverflow/chosen,laantorchaweb/chosen,ansiz/chosen,chirilo/chosen,christophercaburog/chosen,therebelrobot/chosen,glasscubes/chosen,laantorchaweb/chosen,christophercaburog/chosen,mubassirhayat/chosen,landonb/chosen,laantorchaweb/chosen,christophercaburog/chosen,philwolstenholme/chosen,jemmeliCss/chosen,mcanthony/chosen,mcanthony/chosen,Moykn/chosen,mcanthony/chosen,nayosx/chosen,arkhi/chosen,cybernet14/chosen,brees01/chosen,isochronous/chosen,BlaZeX/chosen,itfrogs/chosen,rockmandew/chosen,beyond4453/chosen,SugarOverflow/chosen,StephanieMak/chosen,raphaelcruz/chosen,beyond4453/chosen,upcesar/chosen,M0nsterLabs/chosen,ixiom/chosen,therebelrobot/chosen,nayosx/chosen,nayosx/chosen,upcesar/chosen,willjones1977/chosen,ilyes14/chosen,claimsmall/chosen,arkhi/chosen,gabizz/chosen,skyangelzp/chosen,glasscubes/chosen,xiaomiemie/chosen,StephanieMak/chosen,tleish/chosen,cybernet14/chosen,prashen/chosen,gabizz/chosen,rockmandew/chosen,KimberlyMunoz/chosen,wix/chosen,landonb/chosen,isochronous/chosen,micgro42/chosen,chirilo/chosen,ansiz/chosen,hryniu555/chosen,Burick/chosen,modulexcite/chosen,mcanthony/chosen,thewulf7/chosen,sunkanmi-akintoye/chosen,ixiom/chosen,brees01/chosen,wix/chosen,skyangelzp/chosen,taracila/chosen,harikt/chosen,philwolstenholme/chosen,nayosx/chosen,arxes-tolina/chosen,mubassirhayat/chosen,redrambles/chosen,prashen/chosen,bduncan-vm/chosen,thewulf7/chosen,willjones1977/chosen,harikt/chosen,modulexcite/chosen,cybernet14/chosen,ilyes14/chosen,codesharpdev/chosen,Moykn/chosen,modulexcite/chosen,codesharpdev/chosen,rafalenden/chosen,glasscubes/chosen,modulexcite/chosen,thewulf7/chosen,chandre21cn/chosen,taracila/chosen,arxes-tolina/chosen,bduncan-vm/chosen,gabizz/chosen,M0nsterLabs/chosen,mubassirhayat/chosen,Burick/chosen,M0nsterLabs/chosen,itfrogs/chosen,chandre21cn/chosen,chandre21cn/chosen,isochronous/chosen,ixiom/chosen,landonb/chosen,bduncan-vm/chosen,brees01/chosen,arkhi/chosen,philwolstenholme/chosen,hryniu555/chosen,jemmeliCss/chosen,hryniu555/chosen,KimberlyMunoz/chosen,cjc343/chosen,beyond4453/chosen,micgro42/chosen,rockmandew/chosen,cybernet14/chosen,rockmandew/chosen,KimberlyMunoz/chosen,chirilo/chosen,BlaZeX/chosen,harikt/chosen,mengjuer/chosen,chirilo/chosen,liorch88/chosen,ansiz/chosen,MeteorAdminz/chosen,therebelrobot/chosen,KimberlyMunoz/chosen,micgro42/chosen,mengjuer/chosen,willjones1977/chosen,redrambles/chosen,itfrogs/chosen,hryniu555/chosen,skyangelzp/chosen,redrambles/chosen,xiaomiemie/chosen,beyond4453/chosen,Moykn/chosen,BlaZeX/chosen,tleish/chosen,StephanieMak/chosen,christophercaburog/chosen,bbqsrc/chosen,willjones1977/chosen,M0nsterLabs/chosen,StephanieMak/chosen,chryse/chosen,chryse/chosen,iamcal/chosen,prashen/chosen,tleish/chosen,liorch88/chosen,Burick/chosen,jemmeliCss/chosen,MeteorAdminz/chosen,gabizz/chosen,bbqsrc/chosen,iamcal/chosen,chryse/chosen,ilyes14/chosen,isochronous/chosen,skyangelzp/chosen,mengjuer/chosen,arxes-tolina/chosen,codesharpdev/chosen,claimsmall/chosen,xiaomiemie/chosen,cjc343/chosen,kaviarasankk/chosen,prashen/chosen,philwolstenholme/chosen,MeteorAdminz/chosen