Merge branch '#16-artwork_refactor' into 'master'

Refactor artwork selection handler

Closes #16

See merge request !14

src/App.js

@@ -182,7 +182,7 @@ class App extends React.Component {
                         </div>
                         <div className="artworkArea">
                             <Artwork artwork={this.state.artwork}
-                                     handler={this}
+                                     artworkChanged={this.handleArtworkChange}
                                      categorySelections={categorySelections}/>
                         </div>
                     </div>

src/components/Artwork.js

@@ -5,15 +5,6 @@ import Audio from './Audio';
 import Tabs from './Tabs';
 
 class Artwork extends React.Component {
-    constructor(props) {
-        super(props);
-
-        this.handleArtworkChange = this.handleArtworkChange.bind(this);
-    }
-
-    handleArtworkChange(artwork) {
-        this.props.handler.handleArtworkChange(artwork);
-    }
 
     render() {
         const artwork = this.props.artwork;
@@ -23,7 +14,7 @@ class Artwork extends React.Component {
         return (
             <div className="theArtwork">
               <div className="tabs">
-                <Tabs artwork={artwork} onArtworkChange={this.handleArtworkChange}/>
+                <Tabs artwork={artwork} onArtworkChange={this.props.artworkChanged}/>
               </div>
               <div className="text">
                   <Text artwork={artwork} cat={textCat} />