#344 "Remove from project" dialog is too small and slow to use

[Reijo Tomperi]

"Remove From Project" dialog
- The dialog for removing files is too small if path is
long. Makes it slow to remove files, because you need
to resize it every time to find the correct file. If
all files are under same path you could perhaps just
show the start of the path on the top of the dialog and
then just show the filenames & rest of the folders in
the list. And the dialog could be a little wider.
- If you are removing a class, you will need to open
the dialog twice just to do that. Possibility for
multiselection would be nice.