SlopePowerReservoir slot change for TVA, 2-17-2009

Change made in 5.1 Builds and 5.0.9-future Prerel
http://cadswes2.colorado.edu/~philw/2009/tva/SlotColLabels1/
 
Allow user editing of Slot Column labels for the following two slots:
 
  SlopePowerReservoir.Partition Flow Parameters  [AggSeries partFlowParam]
  SlopePowerReservoir.Partition BW Elevation     [TableSeries partBWElev]
 
Code Change in EngrObjs/SlopePowerReservoir.cpp:
 
  partFlowParam->setColLabel("Partition 1", 0);
  partFlowParam->setBlockSize(1);
  partFlowParam->hasAttribute(Slot::UserSettableColLabelsBit, true); <<< ADDED
 
  partBWElev->setColumnLabel(0, "BW Partition 1");
  partBWElev->hasAttribute(Slot::UserSettableColLabelsBit, true); <<< ADDED