Fixed some intersphinx references.

docs/glossary.txt

@@ -50,7 +50,7 @@ Glossary
         version 2.2. This is a neat way to implement attributes whose usage
         resembles attribute access, but whose implementation uses method calls.
 
-        See :func:`property`.
+        See :class:`property`.
 
     queryset
         An object representing some set of rows to be fetched from the database.

docs/topics/http/sessions.txt

@@ -291,7 +291,7 @@ You can edit it multiple times.
       - ``modification``: last modification of the session, as a
         :class:`~datetime.datetime` object. Defaults to the current time.
       - ``expiry``: expiry information for the session, as a
-        :class:`~datetime.datetime` object, an :func:`int` (in seconds), or
+        :class:`~datetime.datetime` object, an :class:`int` (in seconds), or
         ``None``. Defaults to the value stored in the session by
         :meth:`set_expiry`, if there is one, or ``None``.
 

docs/topics/python3.txt

@@ -79,7 +79,7 @@ String handling
 ---------------
 
 Python 2's `unicode`_ type was renamed :class:`str` in Python 3,
-``str()`` was renamed :func:`bytes`, and `basestring`_ disappeared.
+``str()`` was renamed :class:`bytes`, and `basestring`_ disappeared.
 six_ provides :ref:`tools <string-handling-with-six>` to deal with these
 changes.