http://bugs.dwscoalition.org/show_bug.cgi?id=4927

Added a More Options button to the comment preview page which uses jQuery to redirect to
mode=reply or reply=to.
Merge branch '4927-more-options-preview' of https://github.com/lucymclaughlin/dw-free into 4927-more-options-preview

Conflicts:
	htdocs/js/jquery.commentpreview.js