Fix HTML in example content testing book.
Register BookTextBlock as linkable in TinyMCE.
Add a IBook adapter for finding the book from within book contents.
Replace reader renderer mocktests with functional tests.
Reader: stay in reader view when clicking on book internal links.
PDF: link PDF-internal references like anchors.
Update changelog.
Fix resolveuid url issues in Plone 4.1
Merge pull request #54 from 4teamwork/jone-internal-links

Improve book internal links