Revised model to use wtsADMB library, dropped rFunctions.hpp/cpp and admbFunctions.hpp/cpp as they were no longer necessary (their functionality is incorporated in the wtsADMB library). Also, created Makefile-XX-Mac.mk configuration files, deleted corresponding Makefile-XX.mk files,and changed tools to Clang from GNU.
Merge origin/dev-for-wtsADMB into dev-for-wtsADMB