Added the cProfile module.
Based on lsprof (patch #1212837) by Brett Rosen and Ted Czotter.
With further editing by Michael Hudson and myself.
History in svn repo: http://codespeak.net/svn/user/arigo/hack/misc/lsprof

* Module/_lsprof.c is the internal C module, Lib/cProfile.py a wrapper.
* pstats.py updated to display cProfile's caller/callee timings if available.
* setup.py and NEWS updated.
* documentation updates in the profiler section:
   - explain the differences between the three profilers that we have now
   - profile and cProfile can use a unified documentation, like (c)Pickle
   - mention that hotshot is "for specialized usage" now
   - removed references to the "old profiler" that no longer exists
* test updates:
   - extended test_profile to cover delicate cases like recursion
   - added tests for the caller/callee displays
   - added test_cProfile, performing the same tests for cProfile
* TO-DO:
   - cProfile gives a nicer name to built-in, particularly built-in methods,
     which could be backported to profile.
   - not tested on Windows recently!
diff --git a/Misc/NEWS b/Misc/NEWS
index 1e4ad2a..8b38832 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -2019,6 +2019,11 @@
 Library
 -------
 
+- Added a new module: cProfile, a C profiler with the same interface as the
+  profile module.  cProfile avoids some of the drawbacks of the hotshot
+  profiler and provides a bit more information than the other two profilers.
+  Based on "lsprof" (patch #1212837).
+
 - Bug #1266283: The new function "lexists" is now in os.path.__all__.
 
 - Bug #981530: Fix UnboundLocalError in shutil.rmtree().  This affects