[wxVTK] wxVTK 1.2 is out !

[Mathieu M. <mat...@gm...>]

* wxVTK requires CMake 2.4.5 now. This should solve the issue for bug #1611004,
* Support wxGTK 2.8.0. wxGTK will now use wxWindow in wxGTK 2.8.0 and
above. Thus you do not need to compile with opengl support anymore
now,
* Fix compilation on wxX11 (Thanks to David Akers for report & patch).

-- 
Mathieu