Add changelog and other useful info to README

Author: dan-blanchard

README.rst

@@ -1,10 +1,61 @@
-drmaa-python
+DRMAA Python
 ------------
 
-
-.. image:: https://travis-ci.org/dan-blanchard/drmaa-python.png
-   :target: https://travis-ci.org/dan-blanchard/drmaa-python
+.. image:: https://travis-ci.org/drmaa-python/drmaa-python.png
+   :target: https://travis-ci.org/drmaa-python/drmaa-python
    :alt: Travis build status
 
-DRMAA bindings for Python. Now Python 3 compatible.
+.. image:: https://coveralls.io/repos/drmaa-python/drmaa-python/badge.png
+  :target: https://coveralls.io/r/drmaa-python/drmaa-python
+  :alt: Test coverage
+
+.. image:: https://pypip.in/d/drmaa-python/badge.png
+   :target: https://crate.io/packages/drmaa-python
+   :alt: PyPI downloads
+
+.. image:: https://pypip.in/v/drmaa-python/badge.png
+   :target: https://crate.io/packages/drmaa-python
+   :alt: Latest version on PyPI
+
+`Distributed Resource Management Application API <http://en.wikipedia.org/wiki/DRMAA>`__
+(DRMAA) bindings for Python. For more information
+`read the docs <http://drmaa-python.readthedocs.org>`__.
+
+Requirements
+~~~~~~~~~~~~
+
+-  Python 2.6+
+-  A DRMAA-compatible cluster (e.g., Grid Engine)
+
+License
+~~~~~~~
+
+-  BSD (3 Clause)
+
+Changelog
+~~~~~~~~~
+
+-  v0.7.1
+
+   -  Add `Read The Docs documentation <http://drmaa-python.readthedocs.org>`__
+   -  Add ``const`` module identifiers back into package namespace
+   -  Remove ``b`` prefixes from strings inserted into error messages.
+
+-  v0.7.0
 
+   -  String attribute issues with Python 3 have all been resolved, and now each
+      function that takes a string can handle unicode strings, and returns
+      unicode strings.
+   -  All code has been updated to use future imports for ``unicode_literals``
+      and ``print_function``, so we're effectively writing Python 3 code now.
+   -  PEP8 compliance changes all over the place, except those that would break
+      names required by underlying C DRMAA library.
+   -  Now automatically run unit tests of Travis-CI with SGE, and all tests pass
+      for Python 2.6, 2.7, and 3.3.  SGE is installed using scripts I describe
+      in `this gist <https://gist.github.com/dan-blanchard/6586533>`__.
+   -  Unit tests are now in a top-level directory instead of a sub-directory
+      under the drmaa package.
+   -  There is now a `session.py` module that contains most of the code that was
+      in ``__init__.py`` before, and ``__init__`` just imports things and sets
+      ``__all__`` and ``__version__``, as is typically recommended now.
+   -  Drops support for Python 2.5.