Add travis, coveralls and pypi badges.

This also renames README to README.rst so the syntax works. Unfortunately
there's a bug in distutils where it complains about README.rst, see
https://bugs.python.org/issue11913, so this also sets long_description
explicitly in the call to setup().

MANIFEST.in

@@ -1,2 +1,2 @@
-include README
+include README.rst
 include LICENSE

README

@@ -1,8 +0,0 @@
-wrapt
-=====
-
-A Python module for decorators, wrappers and monkey patching.
-
-For full documentation see:
-
-  http://wrapt.readthedocs.org

README.rst

@@ -0,0 +1,17 @@
+wrapt
+=====
+
+|Travis| |Coveralls| |PyPI|
+
+A Python module for decorators, wrappers and monkey patching.
+
+For full documentation see:
+
+  http://wrapt.readthedocs.org
+
+.. |Travis| image:: https://img.shields.io/travis/GrahamDumpleton/wrapt/develop.svg?style=plastic
+   :target: https://travis-ci.org/GrahamDumpleton/wrapt?branch=develop
+.. |Coveralls| image:: https://img.shields.io/coveralls/GrahamDumpleton/wrapt/develop.svg?style=plastic
+   :target: https://coveralls.io/github/GrahamDumpleton/wrapt?branch=develop
+.. |PyPI| image:: https://img.shields.io/pypi/w/wrapt.svg?style=plastic
+   :target: https://pypi.python.org/pypi/wrapt

setup.py

@@ -36,6 +36,7 @@ setup_kwargs = dict(
       name = 'wrapt',
       version = '1.10.5',
       description = 'Module for decorators, wrappers and monkey patching.',
+      long_description = open('README.rst').read(),
       author = 'Graham Dumpleton',
       author_email = 'Graham.Dumpleton@gmail.com',
       license = 'BSD',