Search improves (#67)

* ESC should go back from search
using direct onKeyDown here as react-keydown does not trigger within an input

* Addressable search urls

frontend/scenes/Search/components/SearchField/SearchField.js

@@ -1,15 +1,13 @@
 // @flow
-import React, { PropTypes } from 'react';
-import { observer } from 'mobx-react';
-
+import React, { Component } from 'react';
 import styles from './SearchField.scss';
 
-@observer class SearchField extends React.Component {
-  static propTypes = {
-    onChange: PropTypes.func,
+class SearchField extends Component {
+  props: {
+    onChange: Function,
   };
 
-  onChange = (event: SyntheticEvent) => {
+  handleChange = (event: SyntheticEvent) => {
     event.currentTarget.value && this.props.onChange(event.currentTarget.value);
   };
 
@@ -17,7 +15,8 @@ import styles from './SearchField.scss';
     return (
       <div className={styles.container}>
         <input
-          onChange={this.onChange}
+          {...this.props}
+          onChange={this.handleChange}
           className={styles.field}
           placeholder="Search"
           autoFocus