bake: Optimize cache handling for the baking process. - Get rid of the 2-level pipeline runs... handle a single set of passes. - Go back to load/render segments/layout passes for pages. - Add descriptions of what each job batch does. - Improve the taxonomy pipeline so it doesn't re-bake terms that don't need to be re-baked. - Simplify some of the code.

---
no_kitchen: true
args: init .
files:
    - config.yml
---
no_kitchen: true
args: init myblog
files:
    - myblog/config.yml
---
args: prepare page foobar
files:
    - kitchen/pages/foobar.md
---
args: prepare post -d 2017/01/08 new-post
files:
    - kitchen/posts/2017-01-08_new-post.md