[maven] change murmur3 plugin groupId and name

plugins/mapper-murmur3/pom.xml

@@ -17,12 +17,12 @@ governing permissions and limitations under the License. -->
 
     <parent>
         <groupId>org.elasticsearch.plugin</groupId>
-        <artifactId>elasticsearch-plugin</artifactId>
+        <artifactId>plugins</artifactId>
         <version>2.1.0-SNAPSHOT</version>
     </parent>
 
-    <artifactId>elasticsearch-mapper-murmur3</artifactId>
-    <name>Elasticsearch Mapper Murmur3 plugin</name>
+    <artifactId>mapper-murmur3</artifactId>
+    <name>Plugin: Mapper: Murmur3</name>
     <description>The Mapper Murmur3 plugin allows to compute hashes of a field's values at index-time and to store them in the index.</description>
 
     <properties>

qa/smoke-test-plugins/pom.xml

@@ -335,7 +335,7 @@
 
                  <artifactItem>
                    <groupId>org.elasticsearch.plugin</groupId>
-                   <artifactId>elasticsearch-mapper-murmur3</artifactId>
+                   <artifactId>mapper-murmur3</artifactId>
                    <version>${elasticsearch.version}</version>
                    <type>zip</type>
                    <overWrite>true</overWrite>