Allow the booklist to scroll

app/components/BookBuilder/BookList.jsx

@@ -47,11 +47,9 @@ export class BookList extends React.Component {
     // }
 
     return (
-      <div className={styles.bookList + ' bootstrap'}>
-        {/* FIXME: make this height: 100%, overflow: auto so it scrolls */}
+      <div className={styles.bookList + ' bootstrap pubsweet-component pubsweet-component-scroll'}>
         <div className='container col-lg-offset-2 col-lg-8'>
 
-          { /* FIXME: make this a fixed header */ }
           <div className='col-lg-12'>
             <h1 className={styles.bookTitle}>
               Books