enums and API compatibility

[John Stamp <jstamp@users.sourceforge.net>]

I'm packaging a new version of yajl.  Several functions in the API 
return the enum yajl_gen_status.  In this new version, 1.0.6, upstream 
added an element to the enum.

http://github.com/lloyd/yajl/commit/3d77db19acfe6060749c01098e7faa62ccb8b64f

I think this should be OK, and at most would only affect callers that 
aren't fully testing the return value.  But I want to double check if 
this breaks compatibility.  Is this something that I need to worry 
about?

John Stamp