Merge remote-tracking branch 'origin/develop' into develop

de.bmotionstudio.gef.editor/icons/icon_signal.gif

de.bmotionstudio.gef.editor/icons/icon_switch.gif

de.bmotionstudio.gef.editor/icons/icon_tank.gif

de.bmotionstudio.gef.editor/icons/icon_track.gif

de.bmotionstudio.gef.editor/icons/icon_tracknode.gif

de.bmotionstudio.gef.editor/plugin.xml

...r/src/de/bmotionstudio/gef/editor/AttributeConstants.java

...e/bmotionstudio/gef/editor/attribute/AttributeBlocks.java

...motionstudio/gef/editor/attribute/AttributeFillColor.java

...otionstudio/gef/editor/attribute/AttributeFillHeight.java

...e/bmotionstudio/gef/editor/attribute/AttributeLights.java

...studio/gef/editor/attribute/AttributeMeasureInterval.java

...onstudio/gef/editor/attribute/AttributeMeasureMaxPos.java

...tionstudio/gef/editor/attribute/AttributeShowMeasure.java

...tionstudio/gef/editor/attribute/AttributeSignalColor.java

...studio/gef/editor/attribute/AttributeSwitchDirection.java

...nstudio/gef/editor/attribute/AttributeSwitchPosition.java

...nstudio/gef/editor/attribute/AttributeTrackDirection.java

.../bmotionstudio/gef/editor/command/TrackCreateCommand.java

.../bmotionstudio/gef/editor/command/TrackDeleteCommand.java