[boost] [clang][Windows] Volunteer for a Boost regression test runner for Clang on Windows

Chandler Carruth has asked for a volunteer to start running boost regression tests for the Clang on Windows project. For more about this project, see http://blog.llvm.org/2013/09/a-path-forward-for-llvm-toolchain-on.html. Chandler cornered me at the C++ committee meeting last week, and emphasized how much they would like to see boost tests passing using Clang in a Visual Studio environment. This would be a big plus for boost developers and users in the Windows environment IMO, so I hope we can help them out. This project is at an early stage, and many boost tests currently fail, so there is a lot of work to be done. --Beman