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/BroadphaseCollision/btAxisSweep3.h

@@ -535,7 +535,7 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::removeHandle(BP_FP_INT_TYPE handle,bt
 
 	//explicitly remove the pairs containing the proxy
 	//we could do it also in the sortMinUp (passing true)
-	//todo: compare performance
+	///@todo: compare performance
 	if (!m_pairCache->hasDeferredRemoval())
 	{
 		m_pairCache->removeOverlappingPairsContainingProxy(pHandle,dispatcher);

src/BulletCollision/BroadphaseCollision/btDbvt.h

@@ -579,7 +579,7 @@ DBVT_INLINE int			Select(	const btDbvtAabbMm& o,
 {
 #if	DBVT_SELECT_IMPL == DBVT_IMPL_SSE
 	static DBVT_ALIGN const unsigned __int32	mask[]={0x7fffffff,0x7fffffff,0x7fffffff,0x7fffffff};
-	// TODO: the intrinsic version is 11% slower
+	///@todo: the intrinsic version is 11% slower
 #if DBVT_USE_INTRINSIC_SSE
 
 	union btSSEUnion ///NOTE: if we use more intrinsics, move btSSEUnion into the LinearMath directory

src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.cpp

@@ -46,7 +46,6 @@ btHashedOverlappingPairCache::btHashedOverlappingPairCache():
 
 btHashedOverlappingPairCache::~btHashedOverlappingPairCache()
 {
-	//todo/test: show we erase/delete data, or is it automatic
 }
 
 
@@ -517,7 +516,6 @@ btSortedOverlappingPairCache::btSortedOverlappingPairCache():
 
 btSortedOverlappingPairCache::~btSortedOverlappingPairCache()
 {
-	//todo/test: show we erase/delete data, or is it automatic
 }
 
 void	btSortedOverlappingPairCache::cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher)

src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h

@@ -369,7 +369,7 @@ public:
 		btVector3 v = (point - m_bvhAabbMin) * m_bvhQuantization;
 		///Make sure rounding is done in a way that unQuantize(quantizeWithClamp(...)) is conservative
 		///end-points always set the first bit, so that they are sorted properly (so that neighbouring AABBs overlap properly)
-		///todo: double-check this
+		///@todo: double-check this
 		if (isMax)
 		{
 			out[0] = (unsigned short) (((unsigned short)(v.getX()+btScalar(1.)) | 1));