WIP: unhide rspec's integration tests results and give all elasticsearch p…

[dchauviere]

…arameters

This PR restore real results of travis-ci integration tests and add a retry loop for waiting elasticsearch to start.

Unfortunately this PR reveal regressions happened in the past :

• "counter" was renamed to "count" (06a4753#diff-ddabedb092be2147e979248f9e1a228cR105)
• incompatible features with elasticsearch 1.7 :
  • part of scripting update (not yet precisely identified)
  • bool query does not support filter (https://github.com/logstash-plugins/logstash-output-elasticsearch/blob/master/spec/integration/outputs/templates_spec.rb#L78)

[andrewvc]

@dchauviere thanks so much for picking this up!

[andrewvc]

@dchauviere I'm going to merge this in as-is and fix the ES 1.x issues in a separate PR. Thanks for this!

[elasticsearch-bot]

Andrew Cholakian merged this into the following branches!

Branch	Commits
master	fab94f0, 78bbcd7