include poms in the plugins dir

This is copying the poms for plugins that we ship in the release into the plugins dir.  We still need to rig up core to look for these poms.

Author: jeffscottbrown

gradle/assemble.gradle

@@ -110,13 +110,15 @@ task pluginsFromRepo {
     ]
 
     ext.dir = file("$buildDir/pluginsFromRepo")
-    outputs.files { dir.listFiles().findAll { it.name.endsWith(".zip") } }
+    outputs.files { dir.listFiles().findAll { it.name.endsWith(".zip") || it.name.endsWith(".pom") } }
     doFirst {
         ant {
             mkdir(dir: dir)
             plugins.each { name, version ->
                 get(src: "http://repo.grails.org/grails/plugins/org/grails/plugins/${name}/$version/${name}-${version}.zip",
                     dest: dir, verbose: true, usetimestamp: true)
+                get(src: "http://grails.org/plugins/grails-${name}/tags/RELEASE_${versionTag}/grails-${name}-${version}.pom",
+                    dest: dir, verbose: true, usetimestamp: true)
             }
         }
     }