the recommended path is ${prefix}/lib/cmake/${package}
- http://www.cmake.org/cmake/help/git-master/manual/cmake-packages.7.html
- the old path lib/CMake is from an older document http://www.cmake.org/Wiki/CMake/Tutorials/How_to_create_a_ProjectConfig.cmake_file
Merge pull request #445 from infinity0/0.11-devel

Update install directory