Accept uid in form renderer and set it in EditorContext

Author: bhch

src/form.js

@@ -187,6 +187,7 @@ export default class Form extends React.Component {
                             fileListEndpoint: this.props.fileListEndpoint,
                             fieldName: this.props.fieldName,
                             modelName: this.props.modelName,
+                            uid: this.props.uid,
                         }}
                     >
                     {this.getFields()}

src/renderer.js

@@ -10,6 +10,7 @@ export default function JSONForm(config) {
     this.fileListEndpoint = config.fileListEndpoint;
     this.fieldName = config.fieldName;
     this.modelName = config.modelName;
+    this.uid = config.uid;
 
     this.render = function() {
         ReactDOM.render(
@@ -21,6 +22,7 @@ export default function JSONForm(config) {
                 fileListEndpoint={this.fileListEndpoint}
                 fieldName={this.fieldName}
                 modelName={this.modelName}
+                uid={this.uid}
             />,
             document.getElementById(this.containerId)
         );