.travis.yml: Install Cython from an egg for speed

easy_install --find-links=http://marc-abramowitz.com/download/python/eggs/linux Cython
.travis.yml: Install Cython from a wheel for speed

pip install --use-wheel --find-links=https://github.com/msabramo/cython/releases/tag/0.19.1 Cython
ChangeLog: Add entry for upcoming release 2.0.0...
setup.py: Bump version to 2.0.0
setup.cfg: Comment out stuff for tagging dev builds
setup.py: Add maintainer and maintainer_email
Rename: README.rst -> README_building_and_developing.rst
Add a new README.rst
setup.py: Read long_description from README.rst + ChangeLog
setup.py: Add platforms='any'
setup.py: Add keywords
Have setup.py pull only ChangeLog recent highlights from
ChangeLog_highlights.rst to avoid PyPI having trouble with invalid reST
markup and to make changes less TL;DR
setup.py: Update url to 'https://github.com/pymssql/pymssql'
README.rst: Add link to Microsoft SQL Server
(http://www.microsoft.com/sqlserver/)
.travis.yml: Don't test "1.0" branch
Tweak ChangeLog_highlights.rst
setup.py: Add classifiers
setup.py: Update PyPI description
MANIFEST.in: Add *.rst
ChangeLog: Update with fuller description for 2.0.0 from
ChangeLog_highlights.rst