rst syntax
Merge branch 'master' of github.com:Pylons/pyramid
- We no longer eagerly clear ``request.exception`` and ``request.exc_info`` in
  the exception view tween.  This makes it possible to inspect exception
  information within a finished callback.  See
  https://github.com/Pylons/pyramid/issues/1223.

Closes #1223.
nose-selecttests is not py3 compat, so we cant really rely on it in testing requirements
prep for 1.5b1
add docs/_themes
- correct error when building docs in Sphinx:
Warning, treated as error:
~/projects/pyramid/pyramid/docs/api/i18n.rst:6: WARNING: error while formatting arguments for pyramid.i18n.TranslationStringFactory: 'function' object has no attribute '__bases__'
Merge pull request #1236 from stevepiercy/master

Allow 1.5b docs to be built in Sphinx
Apply change from #1221 manually.

Avoid the unintentional slight in OPs commit message.
- Add more git submodule instructions
- Add steps to fork and clone Pyramid to GitHub repo, then clone user GitHub repo to local machine.
Merge pull request #1238 from stevepiercy/master

- Add more git submodule instructions
Specified installation instructions for pyramid_chameleon
- Clean up PR #1163
Merge pull request #1239 from stevepiercy/master

Clean up PR #1163
- Update list of session packages
- Update Quick Tour section on sessions
- Closes PR #1150
Merge pull request #1240 from stevepiercy/master

- Update list of session packages
- Garden PR #1121
Merge pull request #1241 from stevepiercy/master

Garden Sphinx directives