message: limit avatar uploads to images
diff: @@ -128,7 +128,7 @@ module.exports = React.createClass({
  uploadSection = (
  <div className={this.props.className}>
  Upload new:
  - <input type="file" onChange={this.onFileSelected}/>
  + <input type="file" accept="image/*" onChange={this.onFileSelected}/>
  {this.state.errorText}
  </div>
  );
  