Version history now returns null, if page does not exist.
Version history now returns null, if page does not exist.


git-svn-id: 6c0206e3b9edd104850923da33ebd73b435d374d@622208 13f79535-47bb-0310-9956-ffa450edef68

tateshitah/jspwiki,tateshitah/jspwiki,tateshitah/jspwiki,tateshitah/jspwiki