winex11.drv: merge the clipboard and drag-and-drop import functions

[André Hentschel]

Am 27.04.2014 11:20, schrieb Damjan Jovanovic:
> * Merges the X selection import functions used by the clipboard and
> drag-and-drop, now allowing files to be copied-and-pasted from X11
> apps into Wine apps, and new types (eg. images) to be
> dragged-and-dropped from X11 apps into Wine apps (instead of just
> files and text like before). Also has the benefit of now allowing
> drag-and-drop to use INCR for large data transfers.
> * Fixes several memory leaks in xdnd.c
> * Uses GlobalAlloc() instead of HeapAlloc() for STGMEDIUM's hGlobal.
> * De-duplicates considerable shared code.

Cool work, but this sounds like "needs splitting"...