moved everything to ets4 with qt:
1. used ets3to4  to change enthought.traits.ui to traits.ui and so on
2. in parameters_gui changed wx.tree_editor to qt.tree_editor
3. in pyptv_gui added ETSConfig to qt4
tested on Mac OS X 10.7 with Canopy (new EPD 8 beta) 32 bit and 64 bit
Merge branch 'qml_ui' of https://github.com/alexlib/openptv-python into qml_ui

Conflicts:
	.gitignore