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/Alerts.jsx

@@ -0,0 +1,41 @@
+import React from 'react';
+import { Alert } from 'react-bootstrap';
+import { connect } from 'react-redux';
+import { bindActionCreators } from 'redux';
+import * as Actions from '../actions';
+
+class Alerts extends React.Component {
+  removeAlert(alert) {
+    this.props.actions.removeAlert(alert);
+  }
+  render() {
+    const alerts = this.props.alerts.map((alert) =>
+      <Alert
+        bsStyle={alert.bsStyle}
+        style={{ width: '500px', textAlign: 'midddle', margin: '10px auto' }}
+      >
+        {alert.msg}
+        <i
+          className="fa fa-close pull-right"
+          onClick={this.removeAlert.bind(this, alert)}
+          style={{ cursor: 'pointer' }}
+        />
+      </Alert>
+    );
+    return (
+      <div>{alerts}</div>
+    );
+  }
+}
+
+Alerts.propTypes = {
+  alerts: React.PropTypes.array,
+  actions: React.PropTypes.object,
+};
+
+function mapDispatchToProps(dispatch) {
+  return {
+    actions: bindActionCreators(Actions, dispatch),
+  };
+}
+export default connect(null, mapDispatchToProps)(Alerts);