added boost_regex flag to default Makefile
added boost_regex flag to default Makefile


Former-commit-id: 3ed63c642a674c2929b32bc4c91bcf0e85224eb9
kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework