Mac OS X Permissions and Users

[jrbudnack]

When installing postgresql to Mac OS X, it would be nice if the framework would pre-create the postgres user and group and set the proper permissions. After doing the initialize and configure steps, the users need to be created and the permissions need to be repaired before postgres may be started as the postgres user:

chown -R postgres:_postgres /var/db/postgresql
chown -R postgres:_postgres /var/run/postgresql