Fixed a crash when non-matching files with valid extensions are found in posts.
Added a warning, because those files are most likely typo errors.

--HG--
branch : stable
Sort posts for `chef find` to make it prettier.
Added time of day for posts when using `chef find --components`.

--HG--
branch : stable
Merged with stable.
Optimized incremental baking:
- Keep the same `PageBaker` around.
- Deprecated `single_page` setting as it's useless now that we have `blog.posts`
  with limit/offset filters.
- Deprecated `pretty_urls` at the page level. It makes things inconsistent and
  gets in the way of a very good optimization.
- Trust the collapse of the transitional bake record for bringing taxonomy
  information on un-baked pages. Yes, I know, this probably doesn't make sense
  for anybody but me. And I probably won't understand what this means in a week.
- Don't pass a `logger` around that much since now it's available on the app
  environment.
- Only check the target bake file on disk once for timestamp.
Don't try to be clever about the location of PHP anymore.
Added support for PHP-Sundown.
Added `--theme` global option to treat a theme like a site.

--HG--
branch : stable
Fixed a bug with sorting posts published on the same date.
Added unit tests.

--HG--
branch : stable
Fixed Chef tests' command-line.

--HG--
branch : stable
Updated CHANGELOG, bumped version up to 1.1.3.

--HG--
branch : stable
Added tag version_1.1.3 for changeset 3ab6d3547b26

--HG--
branch : stable
Merged with stable.