Boost Channel 0.07.1

Boost Channel is a C++ template framework for distributed message passing and event dispatching. Its major components (message IDs, routing algorithms...) are highly configurable as template parameters.
As a namespace shared by peer threads, channels support publish/subscribe scope control, message filtering, and translation.
Enhancements:
- Jamfile.v2 was added for building the channel library and examples (the current boost CVS build system was changed so Jamfile.v2 is required).
- However, there are issues with building samples using Jamfile.v2 with WindowsXP and VC++.
- Windows users should use the existing Jamfile (v1).
- This may involve replacing the boost/tools/build/v1 directory with the content from an older boost release or CVS checkout (such as 12/10/2006).