D.H.
I agree with the moms who said to drop the bottle for a couple of reasons:
1. She is very into the routine, so it really isn't about hunger or thirst. I would suggest that through the day, remind her that there won't be anymore bottles. "This is the last meal of the day and now it's time for bed."
2. By keeping up this habit, you could be creating a new night time issue as she gets closer to potty training (ie accidents).
3. I like the idea of a water bottle or sippy cup near her, if she's in a big girl bed. We did that for one of my boys. We only left about 2 or 3 oz. of water in a sippy, but it gave him reassurance that he had water if he needed it.
I know it is hard to say no or to stop something, but the part to remember is that kids don't remember a couple of nights of not getting their way or crying. They learn that there are limits and boundaries, and they remember that night time is a time for sleep.
Good luck and I hope this helps.