update tutorial examples

Author: AndreaNeumayr

test/Tutorial/BouncingSphere.jl

@@ -5,7 +5,7 @@ using Modia
 BouncingSphere = Model(
     boxHeigth = 0.1,
     world      = Object3D(feature=Scene(enableContactDetection = true, # default value
-    animationFile="BouncingSphere.json")),
+                        animationFile="BouncingSphere.json")),
     ground     = Object3D(parent=:world, translation=:[0.0,-boxHeigth/2,0.0],
                     feature=Solid(shape=Box(lengthX=4.0, lengthY=:boxHeigth, lengthZ=0.7),
                         visualMaterial=VisualMaterial(color="DarkGreen"),

test/Tutorial/Pendulum1.jl

@@ -9,9 +9,9 @@ Pendulum = Model(
     rev       = Revolute(obj1=:world, obj2=:bodyFrame)
 )
 
-pendulum = @instantiateModel(buildModia3D(Pendulum))
+pendulum = @instantiateModel(buildModia3D(Pendulum), unitless=true)
 simulate!(pendulum, stopTime=3.0)
 
-@usingModiaPlot
+@usingModiaPlot     # use the plot package defined by ENV["MODIA_PLOT"]
 plot(pendulum, "rev.phi")
 end