Allow POST to accept multiple items to create about appengine-rest-server HOT 3 CLOSED

This is a good idea, and one we have talked about already.  I would implement 
it as
allowing the put/post methods to accept a "list" of objects and return a list of
results.  

however, implementing this is not a high priority for us right now, so i'm not 
sure
when this support might get added (by us, someone else is more than welcome to 
send
in a patch!).

allow put/post input to be multiple items wrapped in a 'list' element, returned 
xml
results are wrapped in 'list' element (or comma separated list for textual key 
output)