Branch for adding initializer list support (only in the unreleased gcc 4.4 at the moment).

svn path=; revision=48931
Add tests for BOOST_NO_INITIALIZER_LISTS. Refs #2332

svn path=; revision=48939
Add the BOOST_NO_INITIALIZER_LISTS configuration to the compiler configuration files. Regs #2332

svn path=; revision=48948
Ralf's mpl patches for gcc 4.4. Needed to be able to test initializer list support.

svn path=; revision=48949