Changes with Aloha.Editor 1.0.3

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.

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.