fixes #13846, fix non-editable input elements in Heading widgets on IE < 10. !strict
fixes #13846, fix non-editable input elements in Heading widgets on IE < 10. !strict

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@31218 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful