Updated GUI buttons for ebook-convert feature

cps/static/js/edit_books.js

@@ -254,3 +254,7 @@ $("#btn-upload-cover").on("change", function () {
     } // Remove c:\fake at beginning from localhost chrome
     $("#upload-cover").html(filename);
 });
+
+$("#btn-book-convert").on("change", function () {
+    alert("woot");
+});