[issue #12] Implementation of the 'Response Phases' Navigation (V6):

-updated chart widgets so that the patient data is now read from a
worldstates exercise object that is beeing sent from a wirecloud mockup
object

-if the start/endtime period that is calculated by the chart widgets is
longer than 5 days (and in other words not realistc for an execise), the
precalculated bounds (temporalcoverage-from/to) that come with the
exercise data of a worldstate are being used; the usage of the bounds
can also be forced via "useprecalculatedbounds" flag in
debriefingViewController