FELIX-1637 support additional CSS references in plugins:
   * AbstractWebConsolePlugin extensions overwrite the getCssReferences() method
   * Plain Servlet plugins provide a felix.webconsole.css service registration
      property

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@818501 13f79535-47bb-0310-9956-ffa450edef68
7 files changed