Added remove functions for hppProblemVector

After the modifications, ChppProblem::obstacleList (inCollisionList) will replace list of obstacles. Before the modification, it just added the elements of the new list to the existing list. so, the following modification were done:
1- Add an attribute ,”attMapOuter”, to hppProblem
2- Add  a function “initMapOuter()” to hppProblem
3– Modify the constructors and also  obstacleList (inCollisionList) in hppProblem

	Remove reference to kwsPlusRoadmap.

Concerns only installation with --enable-body option.

behavior.

and ChppDevice are now implemented in hppModel.
WARNING: some methods and attribute names might have changed.

Resolved silly conflicts. (Conflicts are often silly).

in the inner object list.
Added virtual method ChppPlanner::initializeProblem() to enable customized initialization of objects
deriving from ChppPlanner.
Added functionalities to display a roadmap. Might be quickly obsolete.

Added API functions to display a roadmap in the interface.

implemented in ChppWalkPlanner can thus be called by Corba server.

Make a variable for kwsplus version requirement.

Remove KWSPLUS flags as it is handled by Require: field.
Use a variable from configure.ac for kwsPlus version requirement.

This version was supposed to be a local branch but I pushed it by mistake.

This reverts commit 35f163de.

Robot modelling (dynamic part and geometric part) have been
extracted from hppCore to hppModel. hppCore can now be installed
  either with a dependence to hppModel (implementing ChppDevice, ChppBody, ChppJoint)
  or with a simplified implementation of ChppBody without dynamics
but with enhanced distance computation facilities.

  1 ChppDevice derives from CkppDeviceComponent and
  2 The operations performed on objects of this type only concern CkppDeviceComponent part.

not pure virtual.

Without this penetration, adaptive shortcut optimizer does not work.

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