matplotlib Code

Initial commit of ttconv into source tree. This is an exact copy of
the code found here: http://www.this.net/~frank/ttconv.tar.gz
No integration with matplotlib yet.

Easy specification of default output format for cairo backend

Use new module name, rcsetup, in place of rcdefaults

Avoid name conflict

Make cairo testing easier (partial)

Tying up a few loose ends from revision 3462.

Refactored the wx.App creation into a function, _create_wx_app(), that retains a reference to the wx.PySimpleApp instance it creates

Added a missing "not" to the wx.App.MainLoop() detection

Fix crash in memleak_gui.py with Wx backend related to the removal of
the wxapp global variable.

Fix Wx window destruction to no longer use the wxapp global variable
(which was removed in r3459)

Removed the global wxapp variable.

Applied Tim Swast's patch (#1747313) to prevent wx.App.MainLoop() from being called twice when pylab is used from within a wxPython application. Under wxPython 2.4 there is no wx.App.IsMainLoopRunning() method, so this probelm would still occur.