[User32]

[User32]
- Remove 16 bit'isms. Added back removed code and commented it out with added notes.
- Jason Edmeades : Combo should preselect all text on first WM_SETFOCUS.
- Kusanagi Kouichi : Consolidate empty string.
- Alexandre Julliard : Don' t forward WM_SETCURSOR to the desktop window. Modified.
- Dmitry Timoshkov : In a DLGTEMPLATEEX resource dialog version goes before signature.
- Due to truck freeze, there might have slipped in miscellaneous patches.

svn path=/trunk/; revision=45670