Catch script errors
exec the logstash process so that it can be signalled by docker.
replace with a python script
Add a connection checker
Fix typo and catch socket errors
This is a python file now.
Bump timeout to 2m, and make it configurable.
Merge pull request #10 from ClusterHQ/logstash-restart-FLOC-1013

[FLOC-1013] Add an Elasticsearch connection test to the Logstash startup script.