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diff --git a/synfig-core/tags/0.61.08/src/synfig/valuenode_blinecalctangent.cpp b/synfig-core/tags/0.61.08/src/synfig/valuenode_blinecalctangent.cpp
deleted file mode 100644
index 671ce59..0000000
--- a/synfig-core/tags/0.61.08/src/synfig/valuenode_blinecalctangent.cpp
+++ /dev/null
@@ -1,236 +0,0 @@
-/* === S Y N F I G ========================================================= */
-/*!	\file valuenode_blinecalctangent.cpp
-**	\brief Implementation of the "BLine Tangent" valuenode conversion.
-**
-**	$Id$
-**
-**	\legal
-**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**	Copyright (c) 2007, 2008 Chris Moore
-**
-**	This package is free software; you can redistribute it and/or
-**	modify it under the terms of the GNU General Public License as
-**	published by the Free Software Foundation; either version 2 of
-**	the License, or (at your option) any later version.
-**
-**	This package is distributed in the hope that it will be useful,
-**	but WITHOUT ANY WARRANTY; without even the implied warranty of
-**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-**	General Public License for more details.
-**	\endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-#	include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-#	include <config.h>
-#endif
-
-#include "valuenode_blinecalctangent.h"
-#include "valuenode_bline.h"
-#include "valuenode_const.h"
-#include "valuenode_composite.h"
-#include "general.h"
-#include "exception.h"
-#include <ETL/hermite>
-#include <ETL/calculus>
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace std;
-using namespace etl;
-using namespace synfig;
-
-/* === M A C R O S ========================================================= */
-
-/* === G L O B A L S ======================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-ValueNode_BLineCalcTangent::ValueNode_BLineCalcTangent(const ValueBase::Type &x):
-	LinkableValueNode(x)
-{
-	if(x!=ValueBase::TYPE_ANGLE && x!=ValueBase::TYPE_VECTOR)
-		throw Exception::BadType(ValueBase::type_local_name(x));
-
-	ValueNode_BLine* value_node(new ValueNode_BLine());
-	set_link("bline",value_node);
-	set_link("loop",ValueNode_Const::create(bool(false)));
-	set_link("amount",ValueNode_Const::create(Real(0.5)));
-}
-
-LinkableValueNode*
-ValueNode_BLineCalcTangent::create_new()const
-{
-	return new ValueNode_BLineCalcTangent(get_type());
-}
-
-ValueNode_BLineCalcTangent*
-ValueNode_BLineCalcTangent::create(const ValueBase &x)
-{
-	return new ValueNode_BLineCalcTangent(x.get_type());
-}
-
-ValueNode_BLineCalcTangent::~ValueNode_BLineCalcTangent()
-{
-	unlink_all();
-}
-
-ValueBase
-ValueNode_BLineCalcTangent::operator()(Time t)const
-{
-	const std::vector<ValueBase> bline((*bline_)(t));
-	handle<ValueNode_BLine> bline_value_node(bline_);
-	const bool looped(bline_value_node->get_loop());
-	int size = bline.size(), from_vertex;
-	bool loop((*loop_)(t).get(bool()));
-	Real amount((*amount_)(t).get(Real()));
-	BLinePoint blinepoint0, blinepoint1;
-
-	if (!looped) size--;
-	if (size < 1)
-		switch (get_type())
-		{
-			case ValueBase::TYPE_ANGLE:  return Angle();
-			case ValueBase::TYPE_VECTOR: return Vector();
-			default: assert(0); return ValueBase();
-		}
-	if (loop)
-	{
-		amount = amount - int(amount);
-		if (amount < 0) amount++;
-	}
-	else
-	{
-		if (amount < 0) amount = 0;
-		if (amount > 1) amount = 1;
-	}
-
-	vector<ValueBase>::const_iterator iter, next(bline.begin());
-
-	iter = looped ? --bline.end() : next++;
-	amount = amount * size;
-	from_vertex = int(amount);
-	if (from_vertex > size-1) from_vertex = size-1;
-	blinepoint0 = from_vertex ? *(next+from_vertex-1) : *iter;
-	blinepoint1 = *(next+from_vertex);
-
-	etl::hermite<Vector> curve(blinepoint0.get_vertex(),   blinepoint1.get_vertex(),
-							   blinepoint0.get_tangent2(), blinepoint1.get_tangent1());
-	etl::derivative< etl::hermite<Vector> > deriv(curve);
-
-#ifdef ETL_FIXED_DERIVATIVE
-	switch (get_type())
-	{
-		case ValueBase::TYPE_ANGLE:  return (deriv(amount-from_vertex)*(0.5)).angle();
-		case ValueBase::TYPE_VECTOR: return deriv(amount-from_vertex)*(0.5);
-		default: assert(0); return ValueBase();
-	}
-#else
-	switch (get_type())
-	{
-		case ValueBase::TYPE_ANGLE:  return (deriv(amount-from_vertex)*(-0.5)).angle();
-		case ValueBase::TYPE_VECTOR: return deriv(amount-from_vertex)*(-0.5);
-		default: assert(0); return ValueBase();
-	}
-#endif
-}
-
-String
-ValueNode_BLineCalcTangent::get_name()const
-{
-	return "blinecalctangent";
-}
-
-String
-ValueNode_BLineCalcTangent::get_local_name()const
-{
-	return _("BLine Tangent");
-}
-
-bool
-ValueNode_BLineCalcTangent::set_link_vfunc(int i,ValueNode::Handle value)
-{
-	assert(i>=0 && i<link_count());
-
-	switch(i)
-	{
-	case 0: CHECK_TYPE_AND_SET_VALUE(bline_,  ValueBase::TYPE_LIST);
-	case 1: CHECK_TYPE_AND_SET_VALUE(loop_,   ValueBase::TYPE_BOOL);
-	case 2: CHECK_TYPE_AND_SET_VALUE(amount_, ValueBase::TYPE_REAL);
-	}
-	return false;
-}
-
-ValueNode::LooseHandle
-ValueNode_BLineCalcTangent::get_link_vfunc(int i)const
-{
-	assert(i>=0 && i<link_count());
-
-	switch(i)
-	{
-		case 0: return bline_;
-		case 1: return loop_;
-		case 2: return amount_;
-	}
-
-	return 0;
-}
-
-int
-ValueNode_BLineCalcTangent::link_count()const
-{
-	return 3;
-}
-
-String
-ValueNode_BLineCalcTangent::link_name(int i)const
-{
-	assert(i>=0 && i<link_count());
-
-	switch(i)
-	{
-		case 0: return "bline";
-		case 1: return "loop";
-		case 2: return "amount";
-	}
-	return String();
-}
-
-String
-ValueNode_BLineCalcTangent::link_local_name(int i)const
-{
-	assert(i>=0 && i<link_count());
-
-	switch(i)
-	{
-		case 0: return _("BLine");
-		case 1: return _("Loop");
-		case 2: return _("Amount");
-	}
-	return String();
-}
-
-int
-ValueNode_BLineCalcTangent::get_link_index_from_name(const String &name)const
-{
-	if(name=="bline")  return 0;
-	if(name=="loop")   return 1;
-	if(name=="amount") return 2;
-	throw Exception::BadLinkName(name);
-}
-
-bool
-ValueNode_BLineCalcTangent::check_type(ValueBase::Type type)
-{
-	return (type==ValueBase::TYPE_ANGLE ||
-			type==ValueBase::TYPE_VECTOR);
-}