Update to latest Grizzly release.

Author: rlubke

pom.xml

@@ -527,7 +527,7 @@
                 <dependency>
                     <groupId>org.glassfish.grizzly</groupId>
                     <artifactId>grizzly-websockets</artifactId>
-                    <version>2.2.1</version>
+                    <version>2.2.4</version>
                     <optional>true</optional>
                 </dependency>
             </dependencies>