better paging

conf/locale/locale_en-US.ini

@@ -379,8 +379,8 @@ issues.filter_type.assigned_to_you = Assigned to you
 issues.filter_type.created_by_you = Created by you
 issues.filter_type.mentioning_you = Mentioning you
 issues.opened_by = opened %[1]s by <a href="/%[2]s">%[2]s</a>
-issues.previous = Previous Page
-issues.next = Next Page
+issues.previous = Previous
+issues.next = Next
 issues.label_title = Label name
 issues.label_color = Label color
 issues.label_count = %d labels