refactor RESUtils.getHeaderMenuList from showImages
call showImages.siteModules....go() if exists
showImages raddit option "always show sidebar playlister" and refactor

refactored raddit.go and raddit.addPlaylisterToggle
raddit.options "autoplay sidebar playlister"

autoplay when toggling open the sidebar playlister
Merge pull request #1872 from andytuba/raddit-sidebar-options

Raddit sidebar options