Fixed problem compiling lmplz on OS X (fixes #156)
Fixed problem compiling lmplz on OS X (fixes #156)

Had to add link to boost_system-mt. Note that this still assumes you have the -mt
versions of the boost libraries installed, which isn't necessarily true (or required).
It would be nice to have a general solution to linking to boost.

lukeorland/joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,lukeorland/joshua,fhieber/incubator-joshua,fhieber/incubator-joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua,lukeorland/joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua,lukeorland/joshua,fhieber/incubator-joshua,fhieber/incubator-joshua,lukeorland/joshua,lukeorland/joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,lukeorland/joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua,lukeorland/joshua,thammegowda/incubator-joshua,lukeorland/joshua,fhieber/incubator-joshua