Zoomfoundry

- add installed path to admin environment info page
- add support for custom themed email templates
- add ability to test email attachments in admin app
- make send_as use passed sender
- add links to paths in admin app
- remove use of fstrings to maintain v3.5 compatibility
- minor tweaks for custom collections
- return status 500 for application exceptions
- add get_db function
- add set_site function
- increase size of group name column
- increase size of audit_log app name column
- add key parameter to get_user to get specific users
- use locate for user operations to accomodate morphed usernames
- update tests to run against python 3.8 and 3.9
- add collection_of
- add users.can
- add uuid to browse table
- add name parameter to store_of
- trap NameError when logging database close at shutdown

- add api module
- add support for nested Record attributes
- provide more informative template rendering messages

- add support for date and datetime in sqltools query builder
- fix bug in migration revert logging
- add missing jquery requirement for datatables package
- fix bug in collection preventing image deletion in record stores
- fix bug in number field validator
- escape reserved words in store find methods
- render CheckboxField inputs with unique ids
- set database logging off by default
- make how_log_ago work with dates and datetimes

- improve formatting of id columns in printed output
- fix bug in database.execute_many when passed single dict arg
- add support for select elements in web tests

- use default theme as fallback for get_template
- update pivottable data serialization and styling

- refactor Metric widget
- add support for bootstrap 4.5 pulldowns in system menu
- add profile app
- add site.system property and system helper tag
- fix json iso date encoding bug