Generated package.json
Fix regression.
Add toJSON for supporting chronicling.
Make all nodes toJSONable.
Updated package.json.
Straightened seeding.
Add getter for `level`.
First iteration on fixing document tests.
Speed-up text node rendering by 10x.

The secret: do not use jquery for element construction.
Silence.
Renaming: DocumentTest -> ArticleTest
'Entspannung' - first iteration.
Minor fix.
Add annotation support to text views.
Require undescore.
Switched to a Range based API for mapping Substance.Document positions to DOM.
Retrieve correct Substance.Document and DOM positions.
Merge branch 'entspannt' of https://github.com/substance/article into entspannt
Provide schema id + version for article.
Fix regressions.