Add the latest boost.m4
Update the minimum required boost from 1.45 to 1.49
Rebuild configure scripts
Implement change to boost.m4 described at https://github.com/tsuna/boost.m4/issues/19#issuecomment-6523758
Cleanup automake config files
Regenerate configure scripts
Fix vars used for unit test framework
* Update to latest boost.m4 with additional edit for open issue #19
* Use recommended BOOST_*_LDFLAGS and BOOST_*_LIBS vars in Makefile.am
* update minimum required boost version from 1.45 to 1.49
* use liblikely.la instead of "-L. -llikely" in program_LDADD directives