Change default query lookup types for plain Column
Change default query lookup types for plain Column

Still going to allow iexact here because I'm not sure removing it is
smart for custom fields that mean special things during "exact"

pivotal-energy-solutions/django-datatable-view,annaproch/django-datatable-view,doganmeh/django-datatable-view,annaproch/django-datatable-view,jangeador/django-datatable-view,jangeador/django-datatable-view,pivotal-energy-solutions/django-datatable-view,greenbender/django-datatable-view,jangeador/django-datatable-view,addgene/django-datatable-view,greenbender/django-datatable-view,doganmeh/django-datatable-view,addgene/django-datatable-view,greenbender/django-datatable-view,pivotal-energy-solutions/django-datatable-view,annaproch/django-datatable-view,doganmeh/django-datatable-view,addgene/django-datatable-view