Bug 1032014 - Remove extra call to AppendElement when generating animations; r=dbaron
Bug 1031319 part 1 - Don't generate element animations when animation-name is "none"; r=dbaron

This patch causes animations whose corresponding animation-name is "none" to be
dropped from the list of generated ElementAnimation objects. This means we avoid
generating events for these animations.
Bug 1031319 part 2 - Add tests for animation-name:none handling; r=dbaron
Bug 1010067 - Whitespace fix to nsTransitionManager::FlushTransitions. No review.

This change was suggested in bug 1010067 comment 22 but somehow ended up in the
wrong patch when pushing.