Fixed executing order of queries by dbWriter()

-also added index tables bookmarksTitle and bookmarksUrl to
   default database.
-and removed a double check from saveBookmark()

src/lib/bookmarks/bookmarksmodel.cpp

@@ -170,9 +170,8 @@ bool BookmarksModel::saveBookmark(const QUrl &url, const QString &title, const Q
         image = qIconProvider->emptyWebImage();
     }
 
-    if (!isFolder(folder)) {
-        createFolder(folder);
-    }
+    // createFolder() calls isFolder()
+    createFolder(folder);
 
     QSqlQuery query;
     query.prepare("INSERT INTO bookmarks (url, title, folder, icon) VALUES (?,?,?,?)");

src/lib/other/databasewriter.cpp

@@ -37,8 +37,8 @@ void DatabaseWriter::execute()
         return;
     }
 
-    QSqlQuery query = m_queries.last();
+    QSqlQuery query = m_queries.first();
     query.exec();
 
-    m_queries.remove(m_queries.size() - 1);
+    m_queries.remove(0);
 }