Includes:
- inform ns3 user cmake was not found, or an unsupported version was found
- replace open-mpi environment variables with command-line arguments
- mark more variables as advanced
- add -v and --verbose option to run and only output the programs output by default
- fix scratch subdir prefixes and add tests
- prevent cmake crash when scratch sources do not have a main function
- disable MPI module by default
- wrap cmakelists_content in quotes to prevent failure of filter_libraries
- install pkgconfig files and add tests
- pkg-config generation (still missing installation)
- forward PYTHONPATH to modulegen
- fix dependency search for brite, click and openflow
bbe2128abe