Add a bin/test-fast script, which does not run the full stack book export tests.
Replace navigation doctests with propper tests.
Rename testing layers for more efficient test ordering.
Load example content profiles in development.
Fix invalid markup in TOC trees: move <ul>s into <li>s.
Refactor book_view doctests into propper tests.
Table calculator test: remove empty lines.
Cleanup: pep8.
Sort dependencies alphabetically.
Declare missing dependencies.
Merge pull request #50 from 4teamwork/jone-tests

Cleanup