Update to django-pipeline 1.6.6

Review Request #7946 — Created Feb. 5, 2016 and submitted — Latest diff uploaded

Information

Djblets
release-0.10.x
afbe322...

Reviewers

This change does the work necessary to move us to a modern django-pipeline.
This involves several independent but related pieces:
- Bump the dependency.
- Update existing templates to use the new pipeline templatetag library and
associated stylesheet and javascript tags.
- Add a compatibility library for third-party packages that still want to use
the old compressed tag library.
- Change settings.py to use the new PIPELINE structure and split out static
media into a staticbundles.py file.
- Make changes to everything that manipulates settings.PIPELINE* to use the
new settings mechanism.
- Make a few changes to the staticfiles finders and loaders to cope with
pipeline's "simplification".

This requires django-pipeline 1.6.6, which contains several patches to fix bugs
and add features that we need for this.

This also adds the very beginnings of 0.10 release notes to include
compatibility instructions when updating to use this.

  • Ran unit tests
  • Built a djblets package and verified that static media got compiled correctly.
  • Explored through the Review Board UI and checked that both the basic UI and
    extensions which shipped static media worked correctly.
  • Built an extension and saw that everything worked correctly.