Time out parameter for TcpHandle

[farthornas]

I have been missing a time out parameter when connecting to a device using python-adb. This is how I have tried to solve this. Please make suggestions or comments.

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[coveralls]

Coverage decreased (-0.3%) to 47.835% when pulling 7e2c640 on farthornas:master into cb4ae46 on google:master.

[farthornas]

CLA check check

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