SQL Lab - A multi-tab SQL editor (#514)

* Carapal react mockup

This is really just a mock up written in React to try different
components. It could become scaffolding to build a prototype, or not.

* Merging in Alanna's theme tweaks for SQL lab

* Tweak the display of the alert message in navbar

* Sketching the middleware refresh for Queries

* Adjustments

* Implement timer sync.

* CTAS

* Refactor the queries to be stored as a dict. (#994)

* Download csv endpoint. (#992)

* CSV download engdpoint.

* Use lower case booleans.

* Replcate loop with the object lookup by key.

* First changes for the sync

* Address comments

* Fix query deletions. Update only the queries from the store.

* Sync queries using tmp_id.

* simplify

* Fix the tests in the carapal. (#1023)

* Sync queries using tmp_id.

* Fix the unit tests

* Bux fixes. Pass 2.

* Tweakin' & linting

* Adding alpha label to the SQL LAb navbar entry

* Fixing the python unit tests

caravel/assets/javascripts/SqlLab/components/QueryHistory.jsx

@@ -0,0 +1,58 @@
+import React from 'react';
+
+import { connect } from 'react-redux';
+import { bindActionCreators } from 'redux';
+import * as Actions from '../actions';
+
+import QueryTable from './QueryTable';
+import { Alert } from 'react-bootstrap';
+
+const QueryHistory = (props) => {
+  const activeQeId = props.tabHistory[props.tabHistory.length - 1];
+  const queriesArray = [];
+  for (const id in props.queries) {
+    if (props.queries[id].sqlEditorId === activeQeId) {
+      queriesArray.push(props.queries[id]);
+    }
+  }
+  if (queriesArray.length > 0) {
+    return (
+      <QueryTable
+        columns={[
+          'state', 'started', 'duration', 'progress',
+          'rows', 'sql', 'output', 'actions',
+        ]}
+        queries={queriesArray}
+      />
+    );
+  }
+  return (
+    <Alert bsStyle="info">
+      No query history yet...
+    </Alert>
+  );
+};
+
+QueryHistory.defaultProps = {
+  queries: {},
+};
+
+QueryHistory.propTypes = {
+  queries: React.PropTypes.object,
+  tabHistory: React.PropTypes.array,
+  actions: React.PropTypes.object,
+};
+
+function mapStateToProps(state) {
+  return {
+    queries: state.queries,
+    tabHistory: state.tabHistory,
+  };
+}
+function mapDispatchToProps(dispatch) {
+  return {
+    actions: bindActionCreators(Actions, dispatch),
+  };
+}
+
+export default connect(mapStateToProps, mapDispatchToProps)(QueryHistory);