Adding support for giving the robot days off.
Added days and dates off for the routine.

Not the most efficient way to bring in the check, but this part is tested for this kind of behaviour.
Merge pull request #53 from hawesie/hydro-devel

Adding support for giving the robot days off.
Merge pull request #54 from BFALacerda/hydro-devel

making sure there is always at least a small probability of reaching act...
Merge pull request #55 from BFALacerda/hydro-devel

making sure some initial node is given for the expected time
Reconnecting on nav start and returning empty responses correctly.
Merge pull request #56 from hawesie/hydro-devel

Reconnecting on nav start and returning empty responses correctly.
Added scaling for nav timeout.
Catching killer exception.
REmoved asserts for long-term stability.
fixing preemption mechanism