Embedding Dolphin's KPart

[David Nolden]

@Vladimir: I think a "sync" button is not enough, because the current file 
isn't always what you want.

I think we need instead of all the sync buttons something slightly more 
powerful: A button that you click, and then it opens a dropdown list that 
contains:
- The directories of all currently edited files(each only once of course)
- The base directories of all currently open projects

I think if we have that, we don't need bookmarks.

We could also use that button in the grep-dialog instead of the sync button, 
and wherever else we need to choose a directory(maybe we can embed it into 
the open-file and save-file dialogs?)

Greetings, David