Fixed a memoryleak found in node_viewer_wx.cpp as FE_text_chooser may not delete a callback function. Tracker item 2610, https://tracker.physiomeproject.org/show_bug.cgi?id=2610
Fixed a memoryleak found in node_viewer_wx.cpp as FE_text_chooser may not delete a callback function. Tracker item 2610, https://tracker.physiomeproject.org/show_bug.cgi?id=2610

cmiss/cmgui,cmiss/cmgui