some doxygen updates, added some comments to classes, fix broken links, rename some prefix some internal GIMPACT collision structures using (for example use GIM_AABB instead of BT_AAABB),

removed obsolete btGjkEpa (it was replaced by btGjkEpa2 ages ago)

src/BulletCollision/CollisionShapes/btCollisionShape.cpp

@@ -65,7 +65,7 @@ void btCollisionShape::calculateTemporalAabb(const btTransform& curTrans,const b
 
 	// add linear motion
 	btVector3 linMotion = linvel*timeStep;
-	//todo: simd would have a vector max/min operation, instead of per-element access
+	///@todo: simd would have a vector max/min operation, instead of per-element access
 	if (linMotion.x() > btScalar(0.))
 		temporalAabbMaxx += linMotion.x(); 
 	else

src/BulletCollision/CollisionShapes/btConvexShape.h

@@ -24,8 +24,6 @@ subject to the following restrictions:
 #include "btCollisionMargin.h"
 #include "LinearMath/btAlignedAllocator.h"
 
-//todo: get rid of this btConvexCastResult thing!
-struct btConvexCastResult;
 #define MAX_PREFERRED_PENETRATION_DIRECTIONS 10
 
 /// The btConvexShape is an abstract shape interface, implemented by all convex shapes such as btBoxShape, btConvexHullShape etc.

src/BulletCollision/CollisionShapes/btConvexTriangleMeshShape.cpp

@@ -108,7 +108,7 @@ void	btConvexTriangleMeshShape::batchedUnitVectorGetSupportingVertexWithoutMargi
 		}
 	}
 	
-	//todo: could do the batch inside the callback!
+	///@todo: could do the batch inside the callback!
 
 
 	for (int j=0;j<numVectors;j++)

src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.cpp

@@ -186,7 +186,7 @@ void btHeightfieldTerrainShape::quantizeWithClamp(int* out, const btVector3& poi
 
 	btVector3 v = (clampedPoint);// - m_bvhAabbMin) * m_bvhQuantization;
 
-	//TODO: optimization: check out how to removed this btFabs
+	///@todo: optimization: check out how to removed this btFabs
 		
 	out[0] = (int)(v.getX() + v.getX() / btFabs(v.getX())* btScalar(0.5) );
 	out[1] = (int)(v.getY() + v.getY() / btFabs(v.getY())* btScalar(0.5) );

src/BulletCollision/CollisionShapes/btMinkowskiSumShape.cpp

@@ -35,7 +35,7 @@ btVector3 btMinkowskiSumShape::localGetSupportingVertexWithoutMargin(const btVec
 
 void	btMinkowskiSumShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const
 {
-	//todo: could make recursive use of batching. probably this shape is not used frequently.
+	///@todo: could make recursive use of batching. probably this shape is not used frequently.
 	for (int i=0;i<numVectors;i++)
 	{
 		supportVerticesOut[i] = localGetSupportingVertexWithoutMargin(vectors[i]);

src/BulletCollision/CollisionShapes/btTriangleBuffer.h

@@ -28,7 +28,7 @@ struct	btTriangle
 	int	m_triangleIndex;
 };
 
-///btTriangleBuffer can be useful to collect and store overlapping triangles between AABB and concave objects that support 'processAllTriangles'
+///The btTriangleBuffer callback can be useful to collect and store overlapping triangles between AABB and concave objects that support 'processAllTriangles'
 ///Example usage of this class:
 ///			btTriangleBuffer	triBuf;
 ///			concaveShape->processAllTriangles(&triBuf,aabbMin, aabbMax);

src/BulletCollision/CollisionShapes/btTriangleMesh.cpp

@@ -78,7 +78,7 @@ void	btTriangleMesh::addIndex(int index)
 int	btTriangleMesh::findOrAddVertex(const btVector3& vertex, bool removeDuplicateVertices)
 {
 	//return index of new/existing vertex
-	//todo: could use acceleration structure for this
+	///@todo: could use acceleration structure for this
 	if (m_use4componentVertices)
 	{
 		if (removeDuplicateVertices)