Merge pull request #736 from okomestudio/ts/botocore_update

Remove botocore version pinning

tests/test_ec2/test_nat_gateway.py

@@ -57,6 +57,7 @@ def test_delete_nat_gateway():
     response = conn.delete_nat_gateway(NatGatewayId=nat_gateway_id)
 
     response['ResponseMetadata'].pop('HTTPHeaders', None) # this is hard to match against, so remove it
+    response['ResponseMetadata'].pop('RetryAttempts', None)
     response.should.equal({
         'NatGatewayId': nat_gateway_id,
         'ResponseMetadata': {