Fix lambda duplicate logs

https://pypi.python.org/pypi/fleece/0.2.0

fec8724 ➖ Merge pull request #6 from racker/Logging-fix 🔹 Bruce Stringer
d2135c1 ➖ Bump Fleece version 🔹 Bruce Stringer
8a0faa0 ➖ Clean up the way fleece instantiates loggers 🔹 Bruce Stringer
c53c78e ➖ Merge pull request #5 from ryandub/raxauth 🔹 Ryan Walker
d9eeed8 ➖ Catch missing token better 🔹 Ryan Walker
1f190a9 ➖ Bump structlog version 🔹 Bruce Stringer