Remove copy of sqlalchemy
Remove LICENSES

After argparse and sqlalchemy got removed from kaizen the file isn't necessary
anymore.
Update gitignore file
Use plain argparse instead of the copy
Use sqlalchemy directly

Don't use the copy of sqlalchemy anylonger.
Add a bootstrap.sh file

The file create a virtualenv with all requirements for kaizen. Afterwards it
will be possible to run kaizen within the created virtual python environment.