fix annotation export for books without author

oml/setup.py

@@ -47,7 +47,7 @@ CREATE TABLE user (
     CHECK (peered IN (0, 1)), 
     CHECK (online IN (0, 1))
 );
-CREATE INDEX ix_user_nichname ON user (nichname);
+CREATE INDEX ix_user_nickname ON user (nickname);
 CREATE TABLE metadata (
     created DATETIME, 
     modified DATETIME, 

static/js/exportAnnotationsDialog.js

@@ -45,7 +45,10 @@ oml.ui.exportAnnotationsDialog = function(data) {
 
     function getAnnotationsText() {
         var annotations = oml.$ui.viewer.getAnnotations()
-        var text = 'Annotations for ' + data.title + ' (' + data.author.join(', ') + ')\n\n\n\n'
+        var text = 'Annotations for ' + data.title + (
+            data.author ?' (' + data.author.join(', ') + ')'
+                        : ''
+        )  + '\n\n\n\n'
         text += annotations.map(function(annotation) {
             var page = annotation.pageLabel || annotation.page
             var text = 'Quote' + (page ? ' Page ' + page : '' )+ ':\n\n' + annotation.text

static/js/folders.js

@@ -68,7 +68,7 @@ oml.ui.folders = function() {
 
     function selectList(gainFocus) {
         var split = ui._list.split(':'),
-            index = userIndex[split[0]],
+            index = userIndex ? userIndex[split[0]] : 0,
             list = split[1],
             $selectedList = !ui._list ? oml.$ui.librariesList
                 : !list ? oml.$ui[