This commit deletes werkzeug/script.py, suggest using pallets/click
instead of werkzeug.script for bigger applications and deletes script
module from being loaded in werkzeug/__init__.py

Signed-off-by: Antonio Ossa <aaossa@uc.cl>

As suggested in the corresponding issue, click is the recommended
replacement

#1079 (comment)

Signed-off-by: Antonio Ossa <aaossa@uc.cl>

Signed-off-by: Antonio Ossa <aaossa@uc.cl>

Every manage-<example>.py file used werkzeug.script a deprecated (and
now definitely removed) module. The new cli are powered by click [1]

[1]: https://github.com/pallets/click

Signed-off-by: Antonio Ossa <aaossa@uc.cl>

This commit updates docs and comments to recommend `click` and display
the `click` website ([1]) when possible

[1]: http://click.pocoo.org

Signed-off-by: Antonio Ossa <aaossa@uc.cl>

Some changes were made in `couchdb` and `werkzeug`. It's time to
update our examples. Now they should work on Python 2.

Signed-off-by: Antonio Ossa <aaossa@uc.cl>