NEW: module_v4skin | dialog.js -> the click-action (url or callback) is removed onclick and therefore triggered only once [ticket #894]
NEW: module_v4skin | dialog.js -> added a property to enable / disable the removal of the onClick handler, by default the removal is enabled [ticket #894]
Merge branch '894_deletebutton'

* 894_deletebutton:
  NEW: module_v4skin | dialog.js -> added a property to enable / disable the removal of the onClick handler, by default the removal is enabled [ticket #894]
  NEW: module_v4skin | dialog.js -> the click-action (url or callback) is removed onclick and therefore triggered only once [ticket #894]