Move the Apache Harmony based UTF-8 decoder from the JSR356 web socket implementation to the util package. Point the pre-JSR356 web socket implementation to use the newly copied UTF-8 decoder in the util package.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1452049 13f79535-47bb-0310-9956-ffa450edef68
Structure 101. Reduce a circular package dependency.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1452053 13f79535-47bb-0310-9956-ffa450edef68