Get line labels from SED-ML 'name' not 'id'

[luciansmith]

Another difference in this picture is that the labels in VCell are the IDs of the curves, instead of the names:

From the SED-ML:

      <listOfCurves>
        <curve id="autogen_curve_task1_x1" name="x1" logX="false" xDataReference="auto_time_for_task1" logY="false" yDataReference="auto_dg_for_task1_x1"/>
        <curve id="autogen_curve_task1_x2" name="x2" logX="false" xDataReference="auto_time_for_task1" logY="false" yDataReference="auto_dg_for_task1_x2"/>
        <curve id="autogen_curve_task1_x3" name="x3" logX="false" xDataReference="auto_time_for_task1" logY="false" yDataReference="auto_dg_for_task1_x3"/>