* Logstash code cleanup
* removed unnecesary trace warnings from LS code
* sync
* Logstash readme updated + code cleanup
* changed back to default bulk mechanism
* Logstash extension code improvements
* PR #1143 revision
* logstash event timestamp addition to json
* avoid control char 0
* Testing json output without memset
* null byte
* change init for vars
* changed length of data sent on socket
* fix logstash timestamp field conflict
* revert debug trace
* fix for undefined val in case of LS export
* fix code logic
* revert+cleanup
* save original timestamp for flow
* Use ntopng provided timestamp for timeline (Logstash)
* Clear redundant timestamp value
