Small fixes for IE10

Wodo.TextEditor does still not completely work after this, but at least better then before.
Also makes ViewerJS in IE properly display ODT with annotations.

Any IE lovers around to continue this work? I somehow feel unmotivated for more ;)
Yes, it is not populated. At least also the IE inspector did not list the property "detail" on the event object here, and in the code the value `undefined` was yielded.
Made that more clear in the comment.