Update TODO list (#179)

pep-0512.txt

@@ -714,10 +714,6 @@ Required:
 
 * In progress
 
-  - `Linking a pull request to an issue`_
-    (http://psf.upfronthosting.co.za/roundup/meta/issue589;
-    testing;
-    **blocker**)
   - `Notify the issue if a commit is made`_
     (http://psf.upfronthosting.co.za/roundup/meta/issue590;
     review committal from Ezio Melotti;
@@ -745,6 +741,8 @@ Required:
     (https://github.com/python/devguide/milestone/1)
   - Update commit hash detection on b.p.o to support 10- and 11-character hashes
     (http://psf.upfronthosting.co.za/roundup/meta/issue610)
+  - `Linking a pull request to an issue`_
+    (http://psf.upfronthosting.co.za/roundup/meta/issue589)
 
 
 Optional features: