Bring back travis

.travis.yml

@@ -0,0 +1,34 @@
+language: python
+
+python:
+  - "2.6"
+  - "2.7"
+  - "3.4"
+  - "3.5"
+  - "3.6"
+  - "3.7"
+
+addons:
+  apt:
+    packages:
+      - oracle-java8-installer
+
+env:
+  # different connection classes to test
+  - 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-6.1.1.zip
+  - unzip /tmp/es-snap.zip -d /tmp/
+  - /tmp/elasticsearch-*/bin/elasticsearch -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
+  - pip install .
+
+script:
+  - python setup.py test