Very simple, but very usefull path to ec2_remote_facts

Hi everybody,

It would be very usefull to receive public_ip from ec2_remote_facts.py
I wrote simple patch for that.
Probably we should include it to the ansible 2.2?

With best regards, Oleg

--- a/venv/lib/python2.7/site-packages/ansible/modules/extras/cloud/amazon/ec2_remote_facts.py  2016-07-28 19:32:31.000000000 +0200
+++ b/venv/lib/python2.7/site-packages/ansible/modules/extras/cloud/amazon/ec2_remote_facts.py 2016-09-15 02:13:30.000000000 +0200
@@ -112,6 +112,7 @@
                     'hypervisor': instance.hypervisor,
                     'region': instance.region.name,
                     'persistent': instance.persistent,
+                    'ip_address': instance.ip_address,
                     'private_ip_address': instance.private_ip_address,
                     'state': instance._state.name,
                     'vpc_id': instance.vpc_id,