Patch by Berker Peksag.

earlier without preceding space.

Initial patches by Tobias Brink. Thanks!

Patch by ゆかり ぴんく魔女. Thanks!

with large config files.

with large config files.

collections.Mapping is not available for setup.py.  Remove the dependency the old-fashioned way (copy and paste).

with large config files.

Backwards compatible alternative values possible as documented.
Done by Łukasz Langa, approved by Raymond and Fred.

Life is beatiful once again.

 were ensured to be strings but section names and option keys were not.
 Behaviour unchanged for RawConfigParser and ConfigParser.

configparser.py: changed PendingDeprecationWarnings to DeprecationWarnings, via http://mail.python.org/pipermail/python-dev/2010-November/105391.html
configparser:py: renamed _views to _proxies to be consistent with the SectionProxy name

configuration parser classes
(http://bugs.python.org/issue9421)

values (http://bugs.python.org/issue7005)
(merged r84443 from the release27-mmaint branch, with changes to reflect
changes in Python 3)