initial commit of postgres
updates to README.md and merging upstream master
Updated README.md fixing a typo
cleaning up formatting in README.md
change to the suggested ACL query for postges
updated np, to add -p flag so that the script can be invoked to generated a password non-interactively for use in bulk user creation this does potentially expose the password to other users on the system.  However, I feel we will have sufficient control over our systems to make this an acceptable risk.
Merge branch 'master' of https://github.com/vinnyt/mosquitto-auth-plug
Merge branch 'vinnyt-master'