[Merge] lp:~xnox/upstart/lp1247521 into lp:upstart

[Dmitrijs Ledkovs]

select rounds up timeout based on resolution, but on some platforms precise timing is not available and hence no resolution. And then the below tests timeout. No point in measuring time, if there is no clock to measure it with.
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https://code.launchpad.net/~xnox/upstart/lp1247521/+merge/194045
Your team Upstart Reviewers is requested to review the proposed merge of lp:~xnox/upstart/lp1247521 into lp:upstart.