Changes to prior releases:
* Security audit + fixes.
* Several kernel driver bugs (oopses/deadlocks) fixed.
* Replaced routines with generic code where possible.
* New build system: faster, less code.
* Newer kernels (2.4.13ac, 2.4.16+, 2.4.18, 2.4.19) supported,
linux 2.2 support is gone.
* gnbd has been split into it's own package.
* Switched to autoconf/automake build system.