Merge pull request #595 from benlime/master

adds resizeMode to poster image

Video.js

@@ -218,7 +218,7 @@ export default class Video extends Component {
         top: 0,
         right: 0,
         bottom: 0,
-        resizeMode: 'contain',
+        resizeMode: this.props.posterResizeMode || 'contain'
       };
 
       return (
@@ -272,6 +272,7 @@ Video.propTypes = {
   ]),
   resizeMode: PropTypes.string,
   poster: PropTypes.string,
+  posterResizeMode: Image.propTypes.resizeMode,
   repeat: PropTypes.bool,
   paused: PropTypes.bool,
   muted: PropTypes.bool,