resort should be False by default

[AndrewVSutherland]

I realize that resorting is disabled but it would make developer's lives a lot easier if resort=False by default in the update, delete, and insert_many methods (particularly update).

Otherwise you have to remember to explicitly disable resort in every call to prevent the console from being overwhelmed by "resorting disabled" messages when you debugging.

I see no downside to making this change (certainly no one has written any code that assumes resorting will automatically happen when they make an update, since this has never been done).

I would also argue that if and when you ever do decide to enable resorting, you still don't want it to happen by default, it will be too expense.