Added methods to user to add and remove roles to simplify code; added [] method to Role to access roles
Added methods to user to add and remove roles to simplify code; added [] method to Role to access roles

simi/refinerycms,johanb/refinerycms,simi/refinerycms,trevornez/refinerycms,SmartMedia/refinerycms-with-custom-icons,LytayTOUCH/refinerycms,hoopla-software/refinerycms,aguzubiaga/refinerycms,mlinfoot/refinerycms,LytayTOUCH/refinerycms,KingLemuel/refinerycms,koa/refinerycms,chrise86/refinerycms,mabras/refinerycms,sideci-sample/sideci-sample-refinerycms,clanplaid/wow.clanplaid.net,sideci-sample/sideci-sample-refinerycms,refinery/refinerycms,mabras/refinerycms,bryanmtl/g-refinerycms,mlinfoot/refinerycms,SmartMedia/refinerycms-with-custom-icons,refinery/refinerycms,stefanspicer/refinerycms,stefanspicer/refinerycms,mobilityhouse/refinerycms,gwagener/refinerycms,simi/refinerycms,Eric-Guo/refinerycms,mobilityhouse/refinerycms,bricesanchez/refinerycms,KingLemuel/refinerycms,mojarra/myrefinerycms,gwagener/refinerycms,donabrams/refinerycms,aguzubiaga/refinerycms,Retimont/refinerycms,mkaplan9/refinerycms,kappiah/refinerycms,louim/refinerycms,kelkoo-services/refinerycms,hoopla-software/refinerycms,mojarra/myrefinerycms,mabras/refinerycms,clanplaid/wow.clanplaid.net,louim/refinerycms,Retimont/refinerycms,donabrams/refinerycms,stefanspicer/refinerycms,gwagener/refinerycms,mlinfoot/refinerycms,refinery/refinerycms,kappiah/refinerycms,LytayTOUCH/refinerycms,johanb/refinerycms,stakes/refinerycms,chrise86/refinerycms,trevornez/refinerycms,bricesanchez/refinerycms,trevornez/refinerycms,simi/refinerycms,stakes/refinerycms,koa/refinerycms,pcantrell/refinerycms,mkaplan9/refinerycms,Retimont/refinerycms,hoopla-software/refinerycms,chrise86/refinerycms,KingLemuel/refinerycms,aguzubiaga/refinerycms,pcantrell/refinerycms,anitagraham/refinerycms,kelkoo-services/refinerycms,bryanmtl/g-refinerycms,anitagraham/refinerycms,Eric-Guo/refinerycms,mkaplan9/refinerycms,Eric-Guo/refinerycms,anitagraham/refinerycms,johanb/refinerycms,kappiah/refinerycms