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
submitIssue fires reddit's subreddit change handlers when switching /r/enhancement / resissues
Merge pull request #1873 from andytuba/submitissue-updaterules

submitIssue fires reddit's subreddit change handlers