Include phase info at "outcome_details" when there is a timeout.

[amyxchen]

When phase is timeout, the outcome_details is empty, it should include the phase info as the error case.

*_test_record when result is Timeout:_
start_time_millis: "1468623100886",
outcome_details: [ ],
end_time_millis: "1468623110723",
station_id: "hello_world(WIFI)",
dut_id: "123457",
log_records: [ ],
outcome: "TIMEOUT",
metadata: {
.....
}

***test_record when result is Error: ***
start_time_millis: "1468625279029",
outcome_details: [
{
code: "IOError",
description: "[Errno 2] No such file or directory: 'example_attachment.txt'"
}
],
end_time_millis: "1468625285013",
station_id: "hello_world(WIFI)",
dut_id: "123457",
log_records: [ ],
outcome: "ERROR",
metadata: {
......
}