Bugfix RT58526
In Internet Explorer 7 (or newer versions of Internet Explorer in IE7 mode), sometimes reading the offsetHeight of a DOM element
would return 0 for the first access. Only when reading the offsetHeight again, the correct value would be returned.
This bugfix adds a workaround method to get the offsetHeight of a DOM element, which reads twice if the first returned value happens to be 0.
This fixes various problems connected with reading the offsetHeight.
Bugfix RT58517
When using the repository browser in IE7 (or in a newer version in IE7 mode), resizing the window or the repository
browser could lead to an endless resize cycle. This has been fixed now.