fullbody.py : only import gepetto.blender.exportmotion inside the export method

Solve #24

src/hpp/corbaserver/rbprm/rbprmfullbody.py

@@ -18,7 +18,6 @@
 
 from hpp.corbaserver.rbprm import Client as RbprmClient
 from hpp.corbaserver.robot import Robot
-import hpp.gepetto.blender.exportmotion as em
 from numpy import array, matrix
 from hpp_spline import bezier
 
@@ -817,6 +816,7 @@ class FullBody (Robot):
      # \param configurations list of configurations to save
      # \param filename outputfile where to export the motion
      def exportMotion(self, viewer, configurations, filename):
+          import hpp.gepetto.blender.exportmotion as em
           em.exportStates(viewer, self.client.robot, configurations, filename)
           
      ## Export motion to a format readable by the blender