Add more options to dxr-serve.py:
-h, --host      Hostname to bind to
-j, --jobs      Number of processes to use
-t, --threaded  Use a separate thread for each request
Add --all option to dxr-serve.py as a shorter way of saying --host 0.0.0.0
Add more options to dxr-serve.py.  Close #207
-h, --host Hostname to bind to
-j, --jobs Number of processes to use
-t, --threaded Use a separate thread for each request