Remove duplicate and closed bugs. Sort order and add some details.

pep-0356.txt

@@ -147,18 +147,14 @@ Deferred until 2.6:
 Open issues
 
     - Bugs that need resolving before release:
-        http://python.org/sf/1513646
-        http://python.org/sf/1513223
-        http://python.org/sf/1512814
-        http://python.org/sf/1512695
-        http://python.org/sf/1504046
-        http://python.org/sf/1501934
-        http://python.org/sf/1333982
-        http://python.org/sf/1513646
-        http://python.org/sf/1508010
-        http://python.org/sf/1475523
-        http://python.org/sf/1494314
-        http://python.org/sf/1515471
+        http://python.org/sf/1515471 - stringobject (char buffers)
+        http://python.org/sf/1512814 - AST incorrect lineno
+        http://python.org/sf/1508010 - msvccompiler using VC6
+        http://python.org/sf/1504046 - doc for ElementTree
+        http://python.org/sf/1501934 - AST incorrect LOAD/STORE_GLOBAL
+        http://python.org/sf/1494314 - can't use high sockets (regr in 2.4.3)
+        http://python.org/sf/1475523 - gettext.py bug
+        http://python.org/sf/1333982 - AST
 
     - Should relative imports from __main__ work when feasible?
         Bug report: http://python.org/sf/1510172