Patch implementing bz2 module.

* setup.py
  (PyBuildExt.detect_modules): Included bz2 module detection.

* Modules/bz2module.c
* Lib/test/test_bz2.py
* Doc/lib/libbz2.tex
  Included files implementing, testing, and documenting bz2 module.

* Doc/Makefile.deps
* Doc/lib/lib.tex
  Include references to libbz2.tex.

* Misc/NEWS
  (Library): Mention distutils' c++ linkage patch, and new bz2 module.
diff --git a/Misc/NEWS b/Misc/NEWS
index 980e4d2..c43474e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -534,6 +534,14 @@
   has changed slightly so that an explicit maxlinelen value is always
   honored.
 
+- distutils' build_ext command now links c++ extensions with the c++
+  compiler available in the Makefile or CXX environment variable, if
+  running under *nix.
+
+- New module bz2: provides a comprehensive interface for the bz2 compression
+  library.  It implements a complete file interface, one-shot (de)compression
+  functions, and types for sequential (de)compression.
+
 Tools/Demos
 -----------