Apply Keith Bourgoin's change: https://github.com/Parsely/Petrel/commit/9aca6e0ca6e1cb0af3335256e62c6e2bac8ddae7
Merge pull request #17 from Parsely/master

Add --logdir option
Add missing parenthesis in cmd line help
Docs on setup.sh, configuring Storm settings using --config
Update instructions re: version of Storm
BasicBolt needs a shared_initialize() call as well