Delay resolving rows value from model to allow using custom query to be handle from within Orchestra\Html\Table\Grid. Replacement for #22.
Avoid circular loop as Orchestra\Html\Table\Grid::rows() is allow use as a getter when given parameter is null.

Signed-off-by: crynobone <crynobone@gmail.com>
Add sortable and searchable. Replacement for #22.

Signed-off-by: crynobone <crynobone@gmail.com>
Add default value.

Signed-off-by: crynobone <crynobone@gmail.com>
Update changelog.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge pull request #23 from orchestral/feature/sortable

Add Orchestra\Html\Table\Grid::searchable() and Orchestra\Html\Table\Grid::sortable() to facilitate searching and sorting.