Proposing a PR to fix a few small typos

[timgates42]

Issue Type

[x] Bug (Typo)

Steps to Replicate and Expected Behaviour

• Examine couchdbkit/client.py, couchdbkit/schema/base.py and observe attachement, however expect to see attachment.
• Examine couchdbkit/client.py, couchdbkit/schema/base.py and observe lenght, however expect to see length.
• Examine couchdbkit/client.py and observe securrity, however expect to see security.
• Examine couchdbkit/client.py and observe secuirity, however expect to see security.
• Examine couchdbkit/schema/properties.py and observe retireved, however expect to see retrieved.
• Examine couchdbkit/schema/init.py and observe pythoin, however expect to see python.
• Examine couchdbkit/exceptions.py and observe parsiing, however expect to see parsing.
• Examine couchdbkit/resource.py and observe parameterss, however expect to see parameters.
• Examine couchdbkit/wsgi/proxy.py and observe overrided, however expect to see overridden.
• Examine couchdbkit/client.py and observe optionnal, however expect to see optional.
• Examine couchdbkit/ext/django/forms.py and observe docuemnt, however expect to see document.
• Examine doc/couchdbkit.org/htdocs/docs/api/epydoc.js and observe becaue, however expect to see because.
• Examine couchdbkit/client.py and observe alows, however expect to see allows.

Notes

Semi-automated issue generated by
https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md

To avoid wasting CI processing resources a branch with the fix has been
prepared but a pull request has not yet been created. A pull request fixing
the issue can be prepared from the link below, feel free to create it or
request @timgates42 create the PR. Alternatively if the fix is undesired please
close the issue with a small comment about the reasoning.

https://github.com/timgates42/couchdbkit/pull/new/bugfix_typos

Thanks.