Merge unordered.

[SVN r58605]

doc/changes.qbk

@@ -107,5 +107,13 @@ First official release.
 
 * Support instantiating the containers with incomplete value types.
 * Reduced the number of warnings (mostly in tests).
+* Improved codegear compatibility.
+* [@http://svn.boost.org/trac/boost/ticket/3693 Ticket 3693]:
+  Add `erase_return_void` as a temporary workaround for the current
+  `erase` which can be inefficient because it has to find the next
+  element to return an iterator.
+* Add templated find overload for compatible keys.
+* [@http://svn.boost.org/trac/boost/ticket/3773 Ticket 3773]:
+  Add missing `std` qualifier to `ptrdiff_t`.
 
 [endsect]