With this commit, it is possible to build Python source distribution package
with `python setup.py sdist'. A few relative changes to code base are

• setup.py is added with project metadata and dependencies.
• A readme file is added.
• Python module monitor is moved to a package named monitor_flask_sqlalchemy.
  As a result, package can be imported like `import monitor_flask_sqlalchemy'.

Signed-off-by: Chenxiong Qi cqi@redhat.com