closes #62
fixes #47
fixed #53
fixes #37
fixes #36
fixes #28
fixes #33
user gets informed and the timeseries is removed from the stack auf selected timeseries
closes #51

If the category label for the timeseries is different to the phenomenon label, it will be shown in the legend.
closes #50

If the category label for the timeseries is different to the phenomenon label, it will be shown in the table header.
closes #55: The y-axis labeling is now just the unit of measure and for every supported timeseries a colored dot.
closes #39: datepicker opens now above the buttons
use default status, when userspecific status for an attribute not available