Regenerate gemspec for version 0.7.0
Regenerate gemspec for version 0.7.0

sadaf2605/datagrid,sadaf2605/datagrid,jeanlinux/datagrid,reenhanced/datagrid,bogdan/datagrid,jeanlinux/datagrid,artofhuman/datagrid,reenhanced/datagrid,bogdan/datagrid,11factory/datagrid,artofhuman/datagrid