[MERGE][Bug #105432] how to create a working tree? add "create-tree" alias to "checkout"

[Aaron Bentley]

Aaron Bentley has voted abstain.
Status is now: Waiting
Comment:
I don't really want to add create-tree-- I want a more powerful command 
that encompasses create-tree, remove-tree, bind, unbind, and other 
conversions.

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C1188052807.6064.7.camel%40lapbert%3E