Avoid unspecified behavior of mmap when a file is resized reported by Christian Hardmeier
Fixes for Mavericks and a workaround for Boost's broken semaphore
Clean clang compile (of kenlm)
Merged some of 744376b3fb but also undid some of it because it was just masking a fundaemntal problem with pread rather than working around windows limitations
Currently supports kenlm, irstlm, and srilm options.
bjam [--with-srilm=/path/to/sri] [--with-irstlm=/path/to/irst] -j8
Places binaries in dist/ that pass regression tests.