some AutoYaST UI changes

in openSUSE 11.1 and SLES11, there are some changes in the AutoYaST UI. First of all, the tree on the left was dropped to be more YaST control center like and all summaries of one section are collected on one page now. That means you save at least one click when jumping between modules ;)
The usage of the UI has changed a bit by this, like some buttons were replaced by Combobox Widgets.
Thanx to Martin Schmidkunz for the suggestion on how the UI should look like from a usability point of view and thanx to Sven Schober (a student in my team) for implementing it.



Another important change has happened in the validation dialog which shows the name of the section in the AutoYaST profile that has failed the validation now.
With jing installed you were always able to see which part of the profile is broken but now even with only xmllint installed you can at least see wich section failed.
Thanx to Sven Schober again for implementing this.