[BUILD] improved handling of boost in OpenMS build system

 *  fixed boost compiler errors from boost1.54
 *  added proper dependency for MRMTransitionGroupPicker topp tests
 *	fixed boost/moc error in TOPPView_test since BOOST_MOC_ARGS didn't work their (boost 1.54, cmake 2.8.7, qt 4.8.1)
Merge pull request #667 from aiche/feature/improved-boost-handling

[BUILD] improved handling of boost in OpenMS build system