Changes
/* Enhancements */
* Improved browsing performance in developer mode.
* Improved the file uploading mechanism (e.g. less web traffic, more reliable retries upon failures).
* If loading of a custom XAML template fails, the full error message (incl. line number) is now displayed in the crossed-out section
* If loading of a custom XAML template fails, the file as well as the type browser are directly accessible from the error template (analog to [[Developer Mode]])
