[Migration] new parameters

I introduced two new parameters in AttributesOSM: minStepLength and maxStepDuration. The migration assistant should set minStepLength = stepLengthIntercept and maxStepDuration = Double.MAX_VALUE. Do we need a new version? This should not require a lot of time and since our tests fail cause of this we should fix it fast i.e. high prio. Tests should also be adjusted.

Edited Dec 18, 2018 by Benedikt Zoennchen

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