Description:
As a result of fixing ERGO-124, the show chart feature now throws a java.lang.IndexOutOfBoundsException on some datasets (see Sample of datasets affected).

Steps to reproduce:
see attached .gif

Sample of datasets affected:
1. Water Network Damage for INA
2. Electric Power Damage for INA
3. Memphis Water Utility Network for INA
4. Memphis Electric Power Network for INA

Exception Trace:
63660 - [WARN] [edu.illinois.ncsa.ergo.gis.chart.ui.wizards.drawgraph.SelectFieldPage]: edu.illinois.ncsa.ergo.gis.chart.exceptions.DatasetAdaptationException: Dataset must be TableDataset
67337 - [ERROR] [edu.illinois.ncsa.ergo.gis.chart.ui.actions.ShowChart]: java.lang.IndexOutOfBoundsException: Index: -1, Size: 13
java.lang.IndexOutOfBoundsException: Index: -1, Size: 13
at java.util.LinkedList.checkElementIndex(Unknown Source)
at java.util.LinkedList.get(Unknown Source)
at edu.illinois.ncsa.ergo.gis.datasets.tablemodels.FeatureTableDataModel.getValue(FeatureTableDataModel.java:299)
at edu.illinois.ncsa.ergo.gis.chart.adapters.TabularChartDatasetAdapater.createChartData(TabularChartDatasetAdapater.java:62)
at edu.illinois.ncsa.ergo.gis.chart.ui.views.DatasetChartView.showChart(DatasetChartView.java:241)
at edu.illinois.ncsa.ergo.gis.chart.ui.views.DatasetChartView.setDataset(DatasetChartView.java:93)
at edu.illinois.ncsa.ergo.gis.chart.ui.actions.ShowChart.run(ShowChart.java:63)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:253)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at edu.illinois.ncsa.ergo.eq.rcp.Application.start(Application.java:39)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
at org.eclipse.equinox.launcher.Main.main(Main.java:1438)