is_required to required for default theme install.
Make theme options required column nullable
Merge pull request #3194 from james2doyle/2.3/theme-required-fix

is_required to required for default theme install
Add whereHas() for filtering results by relationships. Break down into SOLID classes
Improvements for query filters
Always eager load this
Merge branch '2.3/develop' of github.com:pyrocms/pyrocms into 2.3/develop
Merge branch 'refs/heads/2.3/develop' into 3.0/develop

Conflicts:
	system/cms/modules/streams_core/src/Pyro/Module/Streams/Entry/EntryQueryFilter.php