unit test for delayline component

[ArcEye]

Issue by luminize Mon Jul 13 10:27:06 2015 Originally opened as https://github.com/machinekit/machinekit/issues/713

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mostly a reminder to self. A nosetest needs to be written for regression test of the delayline component. for that to work the servo thread needs to be increased (triggered) from python to detect the delay working correctly.

[ArcEye]

Comment by luminize Sat May 21 10:18:47 2016

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@mhaberler does this https://github.com/machinekit/machinekit/issues/687 and these https://github.com/machinekit/machinekit/pull/941 be pave the way for writing a proper testcase?