Temporarily revert to using the plugins.xml file rather than generating from plugin build.xml in order to allow 0.8 to be released without plugin sources.
Temporarily revert to using the plugins.xml file rather than generating from plugin build.xml in order to allow 0.8 to be released without plugin sources.

git-svn-id: 36dcc065b18e9ace584b1c777eaeefb1d96b1ee8@524481 13f79535-47bb-0310-9956-ffa450edef68

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