New API for creating a new instance of an object

[andrewimm]

ParseObject.prototype.newInstance() creates a new, memory-unique instance of a Parse Object, as though it had been fetched again from the server. This is only really relevant in Unique Instance mode.

[andrewimm]

@TylerBrock would love your input here

[TylerBrock]

Looks good, would duplicateState work for objects with read only attributes? I assume setting attrs on serverData directly bypasses that.

[andrewimm]

All validation is handled within the ParseObject instance itself, but let me throw together some test cases for ParseUser and ParseSession

[TylerBrock]

Thanks Andrew. Are you thinking this slated for 1.7.2 or 1.8.0?

[andrewimm]

1.8.0, since it represents a new API. I'm currently adding one last change, and then probably pushing out an RC. I like the RC approach, I think I'll adopt it for all future minor version increments.