Merge branch 'stcpopup'

Many usability and appearance improvements for autocompletion popups and
call tips in wxSTC.

See https://github.com/wxWidgets/wxWidgets/pull/1267

include/wx/stc/stc.h

@@ -5187,6 +5187,16 @@ public:
     // Register an image for use in autocompletion lists.
     void RegisterImage(int type, const wxBitmap& bmp);
 
+    // Set the colours used to display the items in an autocompletion list.
+    void AutoCompSetColours(const wxColour& background, const wxColour& text,
+                            const wxColour& highlight,
+                            const wxColour& highlightText);
+
+    // Use a wxListCtrl to display autocompletion lists.
+    void AutoCompUseListCtrl(bool useListCtrl = true,
+                             const wxColour& currentBgColour = wxNullColour,
+                             const wxColour& currentTextColour = wxNullColour);
+
 
 
     // The following methods are nearly equivalent to their similarly named