On refresh, unselect rows that aren't displayed

Merge pull request #133 from NLilley/adelas-changes

Include more BS5 tweaks for Griddly filters.

Merge pull request #128 from NLilley/date-handling

Improve date handling

Version 3.7.8 release

Version 3.7.5 for release

Bump version for release

Include js update in core package

Bump minor version for breaking changes

Handle case where action method returns GriddlyResult subclass