Separate bound_field from render_utils.  Fix continuation URI in links from list view.  Some code cleanup.
Revised view continuation handling so the search parameters are not lost in continuation from action requiring confirmation prompt.
Provision to include other view parameters (e.g. search=) when displaying message in view.
Isolate construction of continuation URL to include selected parameters (currently 'continuation_url' and 'search').
Work in progress: Add generalized support for enumerated types drop-down selection
Work in progress:
Add generalized support for enumerated types drop-down selection.
Enumerated types based on existing structures, with class factory for creating new enumerated type classes.
Implemented enumerated type drop-down for list type selection (list/grid)
All tests pass.
Create type record for list type enumeration, and update test cases.
All tests pass.
Fix up some display surprises
Fix some problems in new code
Renamed some types and associated files
Clean site data; progress sitedata definitions of enum eration types (incomplete)
Add enumeration type for field rendering options.  More renaming of sitadata entity types.
Work in progress.
Updating field rendering for field render type, to use enumeration selection dropdown.
Tests all pass, but development test site is broken, even with sitedata update.
Resolved problem with development test site; added tests.
Improved visible response when site data is inaccessible.
Reviewing TODO - interim commit
Merge branch 'develop' of github.com:gklyne/annalist into develop
Reviewing TODO
Merge branch 'develop' of github.com:gklyne/annalist into develop
Allow comments ('//') in sitedata JSONLD files
Case renaming - stage 1
Case renaming - stage 2
Fix typo