update to v1.8.0, support es 2.2.0

README.md

@@ -11,6 +11,7 @@ Versions
 IK version | ES version
 -----------|-----------
 master | 2.1.1 -> master
+1.8.0 | 2.2.0
 1.7.0 | 2.1.1
 1.6.1 | 2.1.0
 1.5.0 | 2.0.0

pom.xml

@@ -6,13 +6,13 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.elasticsearch</groupId>
     <artifactId>elasticsearch-analysis-ik</artifactId>
-    <version>1.7.0</version>
+    <version>1.8.0</version>
     <packaging>jar</packaging>
     <description>IK Analyzer for ElasticSearch</description>
     <inceptionYear>2011</inceptionYear>
 
     <properties>
-        <elasticsearch.version>2.1.1</elasticsearch.version>
+        <elasticsearch.version>2.2.0</elasticsearch.version>
         <maven.compiler.target>1.7</maven.compiler.target>
         <elasticsearch.assembly.descriptor>${project.basedir}/src/main/assemblies/plugin.xml</elasticsearch.assembly.descriptor>
         <elasticsearch.plugin.name>elasticsearch-analysis-ik</elasticsearch.plugin.name>