The highly important commit of changing a log line
Postgresql integration. Postgresql included into postgresql-schema.sql
PostgresSQL integration with druid
fix hdfs config
fix NPE
filter nulls in CEQR
1) Add check whether a Hydrant has already been persisted before persisting.  Persisting happens synchronously on the same thread, but multiple persist requests can be queued up on that thread which means that subsequent ones would fail with an NPE.  Fixes #178
Merge branch 'master' into bug-fix
fix according to code review
Merge pull request #175 from metamx/bug-fix

Fixes for multiple issues
Merge pull request #177 from nebrera/master

Postgresql adaptation