improvements in DocTreePart

[Victor Röder]

Hi,

>What do you mean by indexing? The bottleneck seems to be IO when
>you open a tree view branch.
>  
>
Either to make the entire DocTreeView persistent or what Sebastian did 
now, "pre-initialisation" when selecting a branch.

Sebastian: I will apply your patch this evening.
How about getting a CVS account and being the docviewpart maintainer? 
Would be very nice.

Bye,
    Victor