Add p3d_ModelMatrix, p3d_ViewMatrix, and p3d_ViewProjectionMatrix.  Fix osg_ViewMatrix and osg_InverseViewMatrix.
The "null" ButtonHandle and TypeHandle now evaluate to false
Add get_children et al to PandaNode
Add proper comparison operators and get_hash to ButtonHandle
Exposing BulletShape.getBounds
Bullet: exposing bounds for single shape and all shapes.
taskMgr.destroy() should imply stop()
Use glClearBufferfv to clear MRTs more efficiently (without having to call glDrawBuffers several times)
Add more parameters for binding images to shaders.
Better handling of nan/infinity.  Previously, these weren't working on Windows in config strings.
Move string_utils.* to from putil to dtoolutil
linmath no longer depends on putil
Fix broken convergence distance calculation, adding a configuration variable to restore the old behavior if needed.
Fix bison/flex location, and fix debug Python on Windows with makepanda
GNU needs #include <limits> for numeric_limits
Fix cmath includes on GNU
Fix missing return statement
Fix a longstanding memory leak in certain interrogate exception handlers.
Raise MemoryError when constructor returns NULL.
Properly check argument count of constructors that take no arguments.
*Always* check for exceptions in C++ methods, otherwise we miss important exceptions thrown in Python code called by C++ methods (like SystemExit!)
Fixes for webcams on Linux with MJPEG streams that omit Huffman tables