include paths should not be relative starting with "../

It leads to problems with certain compilers, when Bullet/src is located in a long pathname.
Keep include path starting with "LinearMath/, "BulletCollision/, or "BulletDynamics/

src/BulletCollision/NarrowPhaseCollision/btConvexCast.h

@@ -17,11 +17,11 @@ subject to the following restrictions:
 #ifndef CONVEX_CAST_H
 #define CONVEX_CAST_H
 
-#include "../../LinearMath/btTransform.h"
-#include "../../LinearMath/btVector3.h"
-#include "../../LinearMath/btScalar.h"
+#include "LinearMath/btTransform.h"
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btScalar.h"
 class btMinkowskiSumShape;
-#include "../../LinearMath/btIDebugDraw.h"
+#include "LinearMath/btIDebugDraw.h"
 
 /// btConvexCast is an interface for Casting
 class btConvexCast

src/BulletCollision/NarrowPhaseCollision/btConvexPenetrationDepthSolver.h

@@ -21,7 +21,7 @@ class btStackAlloc;
 class btVector3;
 #include "btSimplexSolverInterface.h"
 class btConvexShape;
-#include "../../LinearMath/btPoint3.h"
+#include "LinearMath/btPoint3.h"
 class btTransform;
 
 ///ConvexPenetrationDepthSolver provides an interface for penetration depth calculation.

src/BulletCollision/NarrowPhaseCollision/btDiscreteCollisionDetectorInterface.h

@@ -16,8 +16,8 @@ subject to the following restrictions:
 
 #ifndef DISCRETE_COLLISION_DETECTOR1_INTERFACE_H
 #define DISCRETE_COLLISION_DETECTOR1_INTERFACE_H
-#include "../../LinearMath/btTransform.h"
-#include "../../LinearMath/btVector3.h"
+#include "LinearMath/btTransform.h"
+#include "LinearMath/btVector3.h"
 class btStackAlloc;
 
 /// This interface is made to be used by an iterative approach to do TimeOfImpact calculations

src/BulletCollision/NarrowPhaseCollision/btGjkConvexCast.h

@@ -18,9 +18,9 @@ subject to the following restrictions:
 #ifndef GJK_CONVEX_CAST_H
 #define GJK_CONVEX_CAST_H
 
-#include "../CollisionShapes/btCollisionMargin.h"
+#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
 
-#include "../../LinearMath/btVector3.h"
+#include "LinearMath/btVector3.h"
 #include "btConvexCast.h"
 class btConvexShape;
 class btMinkowskiSumShape;

src/BulletCollision/NarrowPhaseCollision/btGjkEpa.h

@@ -21,7 +21,7 @@ Nov.2006
 
 #ifndef _05E48D53_04E0_49ad_BB0A_D74FE62E7366_
 #define _05E48D53_04E0_49ad_BB0A_D74FE62E7366_
-#include "../CollisionShapes/btConvexShape.h"
+#include "BulletCollision/CollisionShapes/btConvexShape.h"
 
 class btStackAlloc;
 

src/BulletCollision/NarrowPhaseCollision/btGjkPairDetector.h

@@ -20,8 +20,8 @@ subject to the following restrictions:
 #define GJK_PAIR_DETECTOR_H
 
 #include "btDiscreteCollisionDetectorInterface.h"
-#include "../../LinearMath/btPoint3.h"
-#include "../CollisionShapes/btCollisionMargin.h"
+#include "LinearMath/btPoint3.h"
+#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
 
 class btConvexShape;
 #include "btSimplexSolverInterface.h"

src/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h

@@ -16,8 +16,8 @@ subject to the following restrictions:
 #ifndef MANIFOLD_CONTACT_POINT_H
 #define MANIFOLD_CONTACT_POINT_H
 
-#include "../../LinearMath/btVector3.h"
-#include "../../LinearMath/btTransformUtil.h"
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btTransformUtil.h"
 
 
 

src/BulletCollision/NarrowPhaseCollision/btPersistentManifold.h

@@ -17,8 +17,8 @@ subject to the following restrictions:
 #define PERSISTENT_MANIFOLD_H
 
 
-#include "../../LinearMath/btVector3.h"
-#include "../../LinearMath/btTransform.h"
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btTransform.h"
 #include "btManifoldPoint.h"
 
 struct btCollisionResult;

src/BulletCollision/NarrowPhaseCollision/btRaycastCallback.h

@@ -16,7 +16,7 @@ subject to the following restrictions:
 #ifndef RAYCAST_TRI_CALLBACK_H
 #define RAYCAST_TRI_CALLBACK_H
 
-#include "../CollisionShapes/btTriangleCallback.h"
+#include "BulletCollision/CollisionShapes/btTriangleCallback.h"
 struct btBroadphaseProxy;
 
 

src/BulletCollision/NarrowPhaseCollision/btSimplexSolverInterface.h

@@ -18,8 +18,8 @@ subject to the following restrictions:
 #ifndef SIMPLEX_SOLVER_INTERFACE_H
 #define SIMPLEX_SOLVER_INTERFACE_H
 
-#include "../../LinearMath/btVector3.h"
-#include "../../LinearMath/btPoint3.h"
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btPoint3.h"
 
 #define NO_VIRTUAL_INTERFACE 1
 #ifdef NO_VIRTUAL_INTERFACE