Merged requested to merge lrn/issue-82_3-22 into gtk-3-22
This was not needed before, but now it seems to be necessary for some reason. The code is just an adjusted copy of the appropriate piece of the OLE2 protocol code, sending GDK_SELECTION_REQUEST.
The rest is just fixing the fallout, allowing LOCAL protocol to pass the functions it wasn't supposed to pass before.
Closes #82 (closed)