* modules/gui/wxwindows/open.cpp: New "open dialog" that mimics the one from the gtk interface.
* modules/gui/wxwindows/popup.cpp: Started implementing the popup menu.
* modules/gui/wxwindows/interface.cpp: Got rid of the pause button. The play button now acts as a
play/pause button depending on the context.
* modules/gui/wxwindows/*: A few hacks needed to make the win32 version useable.