Download API key for publishing addons to the addons site

Change-Id: I271ced675771163dbeddbd91efeda638d73fffff
Reviewed-on: http://gerrit.dmdirc.com/2333
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

.gitignore

@@ -34,3 +34,4 @@ __history
 /lib/clover.license
 /.clover
 /test_profile
+/*.key

build.xml

@@ -19,6 +19,7 @@
             <url url="http://www.dmdirc.com/private/DMDirc.pvk"/>
             <url url="http://www.dmdirc.com/private/DMDirc.spc"/>
         </get>
+	<get dest="addons.api.key" username="${username}" password="${password}" src="http://www.dmdirc.com/private/addons.api.key"/>
     </target>
 
     <target name="-post-clean">