* Add Hyperplane::transform(Matrix/Transform)

* Fix compilations with gcc 3.4, ICC and doxygen
* Fix krazy directives (hopefully)

Eigen/src/Geometry/Transform.h

@@ -539,10 +539,11 @@ Transform<Scalar,Dim>::extractRotation(TransformTraits traits) const
   }
   else if (traits == NoScaling) // though that's stupid let's handle it !
     return linear();
-  else {
+  else
+  {
     ei_assert("invalid traits value in Transform::inverse()");
+    return LinearMatrixType();
   }
-  return LinearMatrixType();
 }
 
 /** Convenient method to set \c *this from a position, orientation and scale