AP style change - collide

Buried in some of the AP style change entries last week was a bit of common sense:

Two objects now don't have to be in motion to collide: The previous entry stated "two objects must be in motion before they can collide. A moving train cannot collide with a stopped train." Now, "We dropped the previous rule that two objects must be in motion before they can collide. The entry has been deleted."

Homepage is also now one word, in keeping with a lot of evolving online usage.