return early if placeholder is not defined

Add migration to allow question names to be changed

editor: fix url, tags not saving

editor: dump json with prettyprinting turned on for easier debugging

Fix linter error

Replace jsoneditor with custom js (mithril)

Include inactive questions in editor

Reformat with black

Update jsoneditor version

code formatting

Remove debug code

add example config for admin routes

add a view for responses

tweak survey display styling

spruce editor

editor: pretty print exported JSON

add import, export and ajax-saving to editor

remove debugging print

fixes for issues introduced by switch to namedtuple

replace manifest with package_data options in setup.cfg