[maven-release-plugin] prepare release 2.1.0

Author: Lennart Koopmann

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>org.graylog.plugins</groupId>
     <artifactId>graylog-plugin-slack</artifactId>
-    <version>2.0.2-SNAPSHOT</version>
+    <version>2.1.0</version>
     <packaging>jar</packaging>
 
     <name>${project.artifactId}</name>
@@ -25,7 +25,7 @@
         <connection>scm:git:[email protected]:Graylog2/graylog-plugin-slack.git</connection>
         <developerConnection>scm:git:[email protected]:Graylog2/graylog-plugin-slack.git</developerConnection>
         <url>https://github.com/Graylog2/graylog-plugin-slack</url>
-        <tag>HEAD</tag>
+        <tag>2.1.0</tag>
     </scm>
 
     <properties>