[explore-v2] hook up ExploreViewContainer to state and add specs (#1300)

* add getParams func to common

* get data from redux state

* specs for chart container and explore view container

caravel/assets/javascripts/explorev2/components/ExploreViewContainer.jsx

@@ -1,14 +1,8 @@
-import React, { PropTypes } from 'react';
+import React from 'react';
 import ChartContainer from './ChartContainer';
 import ControlPanelsContainer from './ControlPanelsContainer';
 import QueryAndSaveButtons from './QueryAndSaveButtons';
 
-const propTypes = {
-  data: PropTypes.shape({
-    viz: PropTypes.object.isRequired,
-  }).isRequired,
-};
-
 export default class ExploreViewContainer extends React.Component {
   constructor(props) {
     super(props);
@@ -42,7 +36,6 @@ export default class ExploreViewContainer extends React.Component {
           </div>
           <div className="col-sm-8">
             <ChartContainer
-              viz={this.props.data.viz}
               height={this.state.height}
             />
           </div>
@@ -51,5 +44,3 @@ export default class ExploreViewContainer extends React.Component {
     );
   }
 }
-
-ExploreViewContainer.propTypes = propTypes;