Cmake improvements
- Split setup of Boost and NetCDF into usmlBuildSetup.cmake
- Add config directory to CMake module path instead of copying into
  /use/shared/cmake directories.
- Create FindUSML.cmake routine for use my USML applications.
Update install instructions to reflect improvements
in installation process.
Allow USML to work with the Boost 1.41 that comes with CentOS.
Use the progress_timer from Boost 1.41 instead of auto_cpu_timer from 1.57.
Merge branch 'master' into cmake_improvements
Cmake improvements
- Split setup of Boost and NetCDF into usmlBuildSetup.cmake
- Add config directory to CMake module path instead of copying into
  /use/shared/cmake directories.
- Create FindUSML.cmake routine for use my USML applications.
- Allow USML to work with the Boost 1.41 that comes with CentOS.
- Use the progress_timer from Boost 1.41 instead of auto_cpu_timer from 1.57.
- Update install instructions to reflect improvements
  in installation process.
Add boost-static to RPM instructions.
Add boost-static to RPM instructions.
Merge pull request #85 from campreilly/cmake_improvements

Cmake improvements tested by Ted Burns.
Search and replace all instances of unsigned with size_t.
-- Test by compiling under Linux 64, Win32, and Win64.
-- Win64 found the most errors because their "size_t" is not a "long".
-- Required modifying NetCDF-3 C++ interface to resolve issues on Win66.
-- Fix errors in unsigned math for az-1.