hardcoded ES version in travis.yml

Author: honzakral

.travis.yml

@@ -6,6 +6,7 @@ python:
  - "3.3"
  - "3.4"
  - "3.5"
+ - "3.6"
 
 addons:
  apt:
@@ -14,16 +15,16 @@ addons:
 
 env:
  # different connection classes to test
- - TEST_ES_CONNECTION=Urllib3HttpConnection ES_VERSION=5.2.0
- - TEST_ES_CONNECTION=RequestsHttpConnection ES_VERSION=5.2.0
+ - TEST_ES_CONNECTION=Urllib3HttpConnection
+ - TEST_ES_CONNECTION=RequestsHttpConnection
 
 before_install:
  - sudo update-java-alternatives -s java-8-oracle
  - export JAVA_HOME=/usr/lib/jvm/java-8-oracle/jre
  - java -version
 
 install:
- - curl -L -o /tmp/es-snap.zip https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-${ES_VERSION}.zip
+ - curl -L -o /tmp/es-snap.zip https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.3.0.zip
  - unzip /tmp/es-snap.zip -d /tmp/
  - /tmp/elasticsearch-*/bin/elasticsearch -E script.inline=true -E path.repo=/tmp -E repositories.url.allowed_urls='http://*' -E node.attr.testattr=test -d
  - git clone https://github.com/elastic/elasticsearch.git ../elasticsearch