new code for bokeh data migration
bugfix for backwards compatability model adjustments
still need some old backwards compatbility logic for blog post
fixes for blogpost
Merge commit 'fcba5902b04ffa5dc9b3c06e5e3cc0f0a9d77d19'
migrated to new model creation dispatch inside backwards compatabiltiy code
backbone no longer supports change, so we're setting attributes in a non-silent manner
setting created inside serverbb, instead of inside views