Fixed bug introduced in commit 47b578f2 where ArbdModel.__init__ arguments were...

Fixed bug introduced in commit 47b578f2 where ArbdModel.__init__ arguments were incorrectly provided by SegmentModel.__init__

mrdna/segmentmodel.py

@@ -1557,7 +1557,8 @@ class SegmentModel(ArbdModel):
         self.DEBUG = DEBUG
         if DEBUG > 0: print("Building ARBD Model")
         ArbdModel.__init__(self,segments,
-                           dimensions, temperature, timestep, cutoff, 
+                           origin, dimensions,
+                           temperature, timestep, cutoff,
                            decompPeriod, pairlistDistance=None,
                            nonbondedResolution = 0,
                            extra_bd_file_lines = extra_bd_file_lines