fix editor not reloading

app/components/SimpleEditor/SimpleEditor.jsx

@@ -217,8 +217,8 @@ export default class SimpleEditor extends React.Component {
 }
 
 SimpleEditor.propTypes = {
-  book: React.PropTypes.object.isRequired,
-  canEdit: React.PropTypes.bool, // needed?
+  book: React.PropTypes.object,
+  // canEdit: React.PropTypes.bool, // needed?
   fragment: React.PropTypes.object,
   history: React.PropTypes.object.isRequired,
   onSave: React.PropTypes.func.isRequired,

app/components/SimpleEditor/SimpleEditorWrapper.jsx

@@ -17,11 +17,11 @@ export class SimpleEditorWrapper extends React.Component {
   }
 
   componentWillMount () {
-    const { book, actions } = this.props
-    const { getCollections, getFragments } = actions
+    const { getCollections, getFragments } = this.props.actions
 
     // TODO: might not need to fetch all the collections?
     getCollections().then(() => {
+      const { book } = this.props
       getFragments(book)
     })
 
@@ -93,7 +93,7 @@ export class SimpleEditorWrapper extends React.Component {
 // TODO -- review required props
 SimpleEditorWrapper.propTypes = {
   actions: React.PropTypes.object.isRequired,
-  book: React.PropTypes.object.isRequired,
+  book: React.PropTypes.object,
   fragment: React.PropTypes.object,
   history: React.PropTypes.object.isRequired,
   user: React.PropTypes.object.isRequired