Different groovy plugin versions depending on ES version

.travis.yml

@@ -9,9 +9,9 @@ go:
 
 env:
   matrix:
-    - ES_VERSION=1.0.3
-    - ES_VERSION=1.1.2
-    - ES_VERSION=1.2.1
+    - ES_VERSION=1.0.3 GROOVY_VER=2.0.0
+    - ES_VERSION=1.1.2 GROOVY_VER=2.0.0
+    - ES_VERSION=1.2.1 GROOVY_VER=2.2.0
     - ES_VERSION=1.3.4
     - ES_VERSION=1.4.4
     - ES_VERSION=1.5.2
@@ -22,7 +22,7 @@ before_script:
   - wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-${ES_VERSION}.tar.gz
   - tar -xzf elasticsearch-${ES_VERSION}.tar.gz -C ${HOME}/elasticsearch
   - "echo 'script.groovy.sandbox.enabled: true' >> ${HOME}/elasticsearch/elasticsearch-${ES_VERSION}/config/elasticsearch.yml"
-  - 'if [[ "${ES_VERSION}" < "1.3" ]]; then ${HOME}/elasticsearch/elasticsearch-${ES_VERSION}/bin/plugin --install lang-groovy; fi'
+  - 'if [[ "${ES_VERSION}" < "1.3" ]]; then ${HOME}/elasticsearch/elasticsearch-${ES_VERSION}/bin/plugin --install elasticsearch/elasticsearch-lang-groovy/${GROOVY_VER}; fi'
   - ${HOME}/elasticsearch/elasticsearch-${ES_VERSION}/bin/elasticsearch >/dev/null &
 
 install: