Fix typos in documents and comments

Fix typos detected by toolkit misspellings.

* pip install misspellings
* git ls-files | grep -v locale | misspellings -f -

Change-Id: I3d7c06bcc3b5d0cdf82b8da98a7fba15e935cab6
Merge "Fix typos in documents and comments"
Improve pecan documentation and correct intersphinx references.

Change-Id: Iac6229a2727a3c662d3fe9e83e1aa02ef648f025
Simplify tox gate tests for OpenStack projects.

I put some tox in your tox so you can tox while you tox.

Change-Id: I2995a0f4ba919b42e90238bb9765958b049e3e57
Forcibly upgrade/install pecan-dev for OpenStack gating tests.

Change-Id: I73cdf6ecedfb8b636ddd90aca473b8b786c50d7d
Cleanup the WSGI app reference from the threadlocal state on every request.

Change-Id: I22f93224047e2b6fd6692423cc27f85b6261f9f8
Closes-Bug: #1279461
Fix a trailing slash bug for `RestController`s that have a `_lookup` method.

Change-Id: Ibd025fc52d37f58644de23cf283afd8d4d55e2d1
Closes-Bug: #1280003
Test pecan against Python3.4 (for now, rc1).

Change-Id: I39c03bbca6c54a3d6c75f82da9842d67ed5666ea
Merge "Cleanup the WSGI app reference from the threadlocal state on every request."
Merge "Test pecan against Python3.4 (for now, rc1)."
Add improved documentation for `pecan.request` and `pecan.response`.

Change-Id: I6f27e5a352000758b959f70d19261389a3ea97b7
Closes-Bug: 1276869
Fix a trailing slash bug for `RestController`s that have a `_lookup` method.

Change-Id: Ibefa6742d0411b8cb8ae1592c8b1ca077088c5e6
Merge "Add improved documentation for `pecan.request` and `pecan.response`."
Merge "Fix a trailing slash bug for `RestController`s that have a `_lookup` method."
Version increment.

Change-Id: Ic3333885875af332f751dc46cfa7ef67d03f20c5