clean plugin directory when testing plugins in order to verify plugins are being correctly installed
clean plugin directory when testing plugins in order to verify plugins are being correctly installed

git-svn-id: 36dcc065b18e9ace584b1c777eaeefb1d96b1ee8@106425 13f79535-47bb-0310-9956-ffa450edef68

apache/forrest,apache/forrest,apache/forrest,apache/forrest,apache/forrest,apache/forrest