Update bosh-lite with new director UUID and quieter CPU footprint
Add numerous additional metadata fields

 * `@ingestor.service` - arbitrary input method (e.g. `lumberjack`, `syslog`)
 * `@ingestor.job` - the job name and index from whichever ingestor received the event (e.g. `ingestor/0`)
 * `@ingestor.timestamp` - timestamp the ingestor received the event
 * `@parser.job` - the job name and index from whichever parser processed the event
 * `@parser.timestamp` - timestamp the parser received the event
 * `@timer.parser` - time (ms) the parser spent parsing the message
 * `@timer.event_lag` - time delta (ms) between when the event was emitted and fully parsed
 * `@timer.ingestion_lag` - time delta (ms) between when the event was emitted and received by the ingestor
Switch to ingestor/parser/timer objects; rename timer events; fix emit_to_ingested calculation
Add logstash.metadata_level property to enable/disable extra fields
Add shared Kibana dashboard for metrics
Use conditionals in parser metadata in case fields are missing
Commit the latest metadata dashboard we have been using
Merge pull request #79 from logsearch/extra-event-metadata

Add extra event metadata