use GinFactoryModuleBuilder to inject multiple displayable instances of some activities

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522281 13f79535-47bb-0310-9956-ffa450edef68
fine tuning on folder list footer panel's border

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522282 13f79535-47bb-0310-9956-ffa450edef68