Fixes for rendering and syntax * take back last commit, leave only cache=0 for tokensupport * Issue #3133359 by agoradesign: Render array sent to Markup::create in IframeOnlyFormatter.php * fix devel_dump * fixes Issue #3136739 by Phil Wolstenholme: Field widget help text displays twice * Issue #3134596 by aluzzardi: Warning: strstr() expects at least 2 parameters * Issue #3133949 by gabe.connolly: Duplicate iframe ids on content with more than one iframe * fixes Issue #2973312 by michaelmol: Support for relative urls