Fix plugin:download to not delete the plugin just downloaded!

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114473 13f79535-47bb-0310-9956-ffa450edef68

plugin/xdocs/changes.xml

@@ -7,6 +7,11 @@
 
   <body>
     <release version="1.2" date="in CVS">
+      <action dev="epugh" type="update">
+        Fixed the plugin:download goal to work.  Previously it would delete
+        the plugin you just downloaded.  Also now leverages the plugin:uninstall
+        goal.
+      </action>    	
       <action dev="vmassol" type="add">
         Added assert:assertEquals tag to verify if two values are equal
         while testing a plugin.

plugin/xdocs/goals.xml

@@ -42,6 +42,10 @@
         <name>plugin:install</name>
         <description>Install the plugin in Maven's plugins dir</description>
       </goal>
+      <goal>
+        <name>plugin:uninstall</name>
+        <description>Uninstall all versions of the plugin in Maven's plugins dir</description>
+      </goal>      
       <goal>
         <name>plugin:test</name>
         <description>Run a plugin's test project</description>