Changed compiler flags for Mac builds so that now SLBM can be built on Macs with the gcc 4.2.1 compiler, which is the version delivered with Mac Xcode. All 4 SLBM interfaces (C++, C, Fortran and Java) now run on Mac, Linux, and Sun.
Changes to the main make file to facilitate building on Sun using gmake. To build on SunOS computers, users must use gmake, not make.
Renamed the SLBM_User_Guide to SLBM_Installation_Guide.
This release involved no changes to the SLBM code or to the RSTT model.