Fix structure padding issues on some architectures
Fix compile warnings with newer versions of gcc
Fix memory leak when continuously rescanning for devices
Check for device nodes in /dev/usb under Linux
Fix compile problem with Darwin/Mac OS X port
Add support for Darwin/Mac OS X 10.4
Fix error when transactions are aborted
Requery endpoints when switching alternate settings
Support more BSD based distributions
Fix problem with short control messages in BSD port
Various other minor fixes
* Fix various compile warnings
* Require newer autotools
* Switch from QT to STL for C++ extensions
* Linux:
* Speed up small bulk and interrupt transfers to previous speeds
* Fix case where bulk and interrupt transfers could block forever
* Fix tree heirarchy building code (undocumented)
