convert OrganizationList to use PaginatedDataList (#192)

* convert Org list to use PaginatedDataList

* add ToolbarAddButton, ToolbarDeleteButton

* pass full org into OrganizationListItem

__tests__/components/PaginatedDataList/ToolbarAddButton.test.jsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import { mountWithContexts } from '../../enzymeHelpers';
+import { ToolbarAddButton } from '../../../src/components/PaginatedDataList';
+
+describe('<ToolbarAddButton />', () => {
+  test('should render button', () => {
+    const onClick = jest.fn();
+    const wrapper = mountWithContexts(
+      <ToolbarAddButton onClick={onClick} />
+    );
+    const button = wrapper.find('button');
+    expect(button).toHaveLength(1);
+    button.simulate('click');
+    expect(onClick).toHaveBeenCalled();
+  });
+
+  test('should render link', () => {
+    const wrapper = mountWithContexts(
+      <ToolbarAddButton linkTo="/foo" />
+    );
+    const link = wrapper.find('Link');
+    expect(link).toHaveLength(1);
+    expect(link.prop('to')).toBe('/foo');
+  });
+});