Use 0 for waitpid
Fixes, still not working 100%
Stream output from Node into Python
About to delete the node running code
Get rid of node startup code because it doesn't reliably exit

The problem is that when given SIGKILL or SIGTERM, instead of exiting,
node is doing something to seemingly create a new process group and
does not exit.  After the stop() method in this class, the node proc
becomes a child of launchd (pid 1 for OS X).
Authentication tests against a real server
Most of the authentication tests in a working form
Make it so that building signed urls works.  There's something really funky happening with bewit generation
Fix the bewit issue in a deterministic way
Fix makefile to start and stop node