diff 7.x-2.0

Release notes

Issue #1224996 by katbailey: fix node_diff() only diffs modified existing values, ignores newly added or removed ones.
Issue #1029768 by Hakaku : Error on diff : Undefined index: und in node_diff()
Issue #1182616 by Hakaku : sometimes the complete diff on both sides turn red
Issue #994204 by pmorel, quartsize, Dane Powell : All revisions display Anonymous as the revision author
Issue #1014062 by brenk28 : Improper use of t()
Issue #1202560 by drunken monkey : Improper use of drupal_add_css()
Issue #934608 by drunken monkey: Misspelling causes deleted text not to be highlighted
Issue #935242 by pmorel: theme_pager function signature has changed. Issue #1035838 by binford2k: Strict warnings.
Issue #997464 by hansfn, motravo, hswong3i, bc: #builder_function error.