Tests panic on [email protected]

[drewwells]

https://github.com/golang/protobuf/releases/tag/v1.4.2

--- FAIL: TestForwardResponseMessageWithNil (0.00s)
panic: interface conversion: interface {} is nil, not map[string]interface {} [recovered]
        panic: interface conversion: interface {} is nil, not map[string]interface {}

goroutine 53 [running]:
testing.tRunner.func1(0xc000307600)
        /usr/local/go/src/testing/testing.go:874 +0x3a3
panic(0x9f83c0, 0xc00030de00)
        /usr/local/go/src/runtime/panic.go:679 +0x1b2
github.com/infobloxopen/atlas-app-toolkit/gateway.TestForwardResponseMessageWithNil(0xc000307600)
        /home/drew/src/github.com/infobloxopen/atlas-app-toolkit/gateway/response_test.go:271 +0x4cd
testing.tRunner(0xc000307600, 0xae1d60)
        /usr/local/go/src/testing/testing.go:909 +0xc9
created by testing.(*T).Run
        /usr/local/go/src/testing/testing.go:960 +0x350