Get the note contents from the model, not the rendered page!
Update wysihtml5.

Mostly, add prepend/append methods.
Check for two exclamation points, be consistant./configure --help
Make the addnotebox pinning consistant.
Add an extra line to the editor box.

Hackish but fixes #47
Take advantage of new wysihtml5 prepend/append methods.
Update wysihtml5 (git stuff).