Updated AUTHORS file and added missing versionadded

AUTHORS

@@ -12,3 +12,12 @@ Patches and Suggestions
 - Chris Edgemon
 - Chris Grindstaff
 - Florent Xicluna
+- Georg Brandl
+- Justin Quick
+- Kenneth Reitz
+- Marian Sigler
+- Ron DuPlain
+- Sebastien Estienne
+- Simon Sapin
+- Stephane Wirtel
+- Zhao Xiaohong

CHANGES

@@ -8,6 +8,9 @@ Version 0.4
 
 Release date to be announced, codename to be selected.
 
+- added the ability to register application wide error handlers
+  from modules.
+
 Version 0.3.1
 -------------
 

flask.py

@@ -615,6 +615,8 @@ class Module(_PackageBoundObject):
     def app_errorhandler(self, code):
         """Like :meth:`Flask.errorhandler` but for a module.  This
         handler is used for all requests, even if outside of the module.
+
+        .. versionadded:: 0.4
         """
         def decorator(f):
             self._record(lambda s: s.app.errorhandler(code)(f))