Bump version to 0.20.6.

Author: bernd

app/lib/Version.java

@@ -51,8 +51,9 @@ public class Version {
     public static final Version v0_20_3 = new Version(0, 20, 3);
     public static final Version v0_20_4 = new Version(0, 20, 4);
     public static final Version v0_20_5 = new Version(0, 20, 5);
+    public static final Version v0_20_6 = new Version(0, 20, 6);
 
-    public static final Version VERSION = v0_20_5;
+    public static final Version VERSION = v0_20_6;
 
     public final int major;
     public final int minor;

project/Build.scala

@@ -5,7 +5,7 @@ import play.Project._
 object ApplicationBuild extends Build {
 
   val appName         = "graylog2-web-interface"
-  val appVersion      = "0.20.5"
+  val appVersion      = "0.20.6"
 
   val appDependencies = Seq(
     cache,