This pull request adds a couple changes for maintenance and downstream libraries:
1) Append to the CMake module path instead of replacing it, which allows the PIPS project to be nested inside other projects that use CMake
2) Move the using declaration in PIPSLogging to limit its scope and prevent symbol conflicts with shared_ptr from the C++11 standard library
3) Use parallel make to speed up building dependencies
This pull request adds a couple changes for maintenance and downstream libraries:
1) Append to the CMake module path instead of replacing it, which allows the PIPS project to be nested inside other projects that use CMake 2) Move the using declaration in PIPSLogging to limit its scope and prevent symbol conflicts with shared_ptr from the C++11 standard library 3) Use parallel make to speed up building dependencies