fog/fog — pull request #3092 by goruha (2014-08-07 11:18:02+00:00)
Title: Fix parsing of SpotInstanceRequests responce when we also specify NetworkInterface

When you specify LaunchSpecification.NetworkInterface.* for [RequestSpotInstances](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-RequestSpotInstances.html)
response of [DescribeSpotInstanceRequests](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-DescribeSpotInstanceRequests.html) have additional elements
```xml

0
subnet-aa707382
test
10.0.0.12

sg-f1612594

true

```
[Default xml response](http://pastebin.com/3FVeqmUB)
[With networking xml response](http://pastebin.com/c6BTeVtM)

With networking we does not parce instanceId well.
This pull request fix bug with parsing such cases.