Step of 0 in a rangeDoubleDomain crashes the exploration

[dumoulin]

If you set the step value of the rangeDoubleDomain when you define an experimental factor, the exploration crashes with the following stacktrace:

java.util.NoSuchElementException
        at java.util.AbstractList$Itr.next(AbstractList.java:350)
        at org.simexplorer.methods.plan.CompletePlan.computeValues(CompletePlan.java:45)
        at org.simexplorer.core.processors.AbstractArrayPlan.build(AbstractArrayPlan.java:37)
        at org.simexplorer.core.processors.ExperimentalDesign.build(ExperimentalDesign.java:48)
        at org.simexplorer.core.processors.AbstractExploration.buildDesign(AbstractExploration.java:80)
        at org.simexplorer.methods.processors.ExplorationProcessor.prepare(ExplorationProcessor.java:59)
        at org.simexplorer.core.processors.Processor.run(Processor.java:167)
        at org.simexplorer.core.processors.ProcessorsList.process(ProcessorsList.java:79)
        at org.simexplorer.core.processors.Processor.run(Processor.java:170)
        at org.simexplorer.core.processors.ProcessorsList.run(ProcessorsList.java:278)
        at org.simexplorer.core.processors.IDEModularApplication.run(IDEModularApplication.java:54)
        at org.simexplorer.runtime.SimExplorer.start(SimExplorer.java:107)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1212)