[WiP] rename project from Caravel to Superset (#1576)

* Change in files

* Renamin files and folders

* cleaning up a single piece of lint

* Removing boat picture from docs

* add superset word mark

* Update rename note in docs

* Fixing images

* Pinning datatables

* Fixing issues with mapbox-gl

* Forgot to rename one file

* Linting

* v0.13.0

* adding pyyaml to dev-reqs

superset/assets/spec/javascripts/dashboard/SliceCell_spec.jsx

@@ -0,0 +1,24 @@
+import React from 'react';
+import SliceCell from '../../../javascripts/dashboard/components/SliceCell';
+import { mount } from 'enzyme';
+import { describe, it } from 'mocha';
+import { expect } from 'chai';
+import { slice } from './fixtures';
+
+
+describe('SliceCell', () => {
+  const mockedProps = {
+    slice,
+    removeSlice: () => {},
+    expandedSlices: () => {},
+  };
+  it('is valid', () => {
+    expect(
+      React.isValidElement(<SliceCell {...mockedProps} />)
+    ).to.equal(true);
+  });
+  it('renders five links', () => {
+    const wrapper = mount(<SliceCell {...mockedProps} />);
+    expect(wrapper.find('a')).to.have.length(5);
+  });
+});