load correct undo stack, even if the undo-command has registered a different @element
formula click handling and replacement of/in current selection
phase replaceSelectionHTML function of hallo out in order to use better-to-handle jquery replacements wrapped with undo
remove execCommand comment
sourcedescription editor fix undo command
use delegate/undelegate to bind click-events
return newly created undo_command to reuse the function in plugins
compiled js