Changed the import semantics from "from wxPython import *" to "from

Changed the import semantics from "from wxPython import *" to "from
wxPython.wx import *"  This is for people who are worried about
namespace pollution, they can use "from wxPython import wx" and then
prefix all the wxPython identifiers with "wx."

Added wxTaskbarIcon for wxMSW.

Made the events work for wxGrid.

Added wxConfig.

Added wxMiniFrame for wxGTK, (untested.)

Changed many of the args and return values that were pointers to gdi
objects to references to reflect changes in the wxWindows API.

Other assorted fixes and additions.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775