fix deprecation warning from pack()
speed up zipkin backend, add trivial benchmark
oops, didn't mean to change this file...
make the statsd backend a little faster, too
disable db handlers, update config
Add a tools and setup.py files/folders
Add more deps
ooops... forgot a file!
less buggy and faster way of converting IP address to signed int, also
means we don't need IPy.
fix overflow in port number
make the statsdb backend eventlet safe.  without the lock, you get
multiple concurrent write errors.
add sql query to db traces
add option to config.py to toggle db tracing