diff --git a/platform/x11/detect.py b/platform/x11/detect.py
index 4ecd23204fc..7fa1666c59d 100644
--- a/platform/x11/detect.py
+++ b/platform/x11/detect.py
@@ -55,6 +55,7 @@ def get_opts():
 	('use_leak_sanitizer','Use llvm compiler sanitize memory leaks','no'),
 	('pulseaudio','Detect & Use pulseaudio','yes'),
 	('new_wm_api', 'Use experimental window management API','no'),
+	('debug_release', 'Add debug symbols to release version','no'),
 	]
   
 def get_flags():
@@ -109,7 +110,10 @@ def configure(env):
 
 	if (env["target"]=="release"):
 		
-		env.Append(CCFLAGS=['-O2','-ffast-math','-fomit-frame-pointer'])
+		if (env["debug_release"]):
+			env.Append(CCFLAGS=['-g2','-fomit-frame-pointer'])
+		else:
+			env.Append(CCFLAGS=['-O2','-ffast-math','-fomit-frame-pointer'])
 
 	elif (env["target"]=="release_debug"):
 
diff --git a/scene/2d/camera_2d.cpp b/scene/2d/camera_2d.cpp
index 2ebf34d34b1..27a512845c0 100644
--- a/scene/2d/camera_2d.cpp
+++ b/scene/2d/camera_2d.cpp
@@ -216,6 +216,7 @@ void Camera2D::_notification(int p_what) {
 		} break;
 		case NOTIFICATION_ENTER_TREE: {
 
+
 			viewport = NULL;
 			Node *n=this;
 			while(n){
@@ -526,6 +527,7 @@ Camera2D::Camera2D() {
 	drag_margin[MARGIN_RIGHT]=0.2;
 	drag_margin[MARGIN_BOTTOM]=0.2;
 	camera_pos=Vector2();
+	first=true;
 
 	smoothing=0.0;
 	zoom = Vector2(1, 1);
diff --git a/scene/2d/navigation2d.cpp b/scene/2d/navigation2d.cpp
index e4d10cad123..d427bf4bc32 100644
--- a/scene/2d/navigation2d.cpp
+++ b/scene/2d/navigation2d.cpp
@@ -516,7 +516,8 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2& p_start, const Vect
 						apex_poly=p;
 						portal_left=apex_point;
 						portal_right=apex_point;
-						path.push_back(apex_point);
+						if (path[path.size()-1].distance_to(apex_point)>CMP_EPSILON)
+							path.push_back(apex_point);
 						skip=true;
 					}
 				}
@@ -536,7 +537,8 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2& p_start, const Vect
 						apex_poly=p;
 						portal_right=apex_point;
 						portal_left=apex_point;
-						path.push_back(apex_point);
+						if (path[path.size()-1].distance_to(apex_point)>CMP_EPSILON)
+							path.push_back(apex_point);
 					}
 				}
 
@@ -547,7 +549,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2& p_start, const Vect
 
 			}
 
-			if (path[path.size()-1]!=begin_point)
+			if (path[path.size()-1].distance_to(begin_point)>CMP_EPSILON)
 				path.push_back(begin_point);
 
 			path.invert();
diff --git a/scene/resources/curve.cpp b/scene/resources/curve.cpp
index 32949c32b7e..c1a389942fe 100644
--- a/scene/resources/curve.cpp
+++ b/scene/resources/curve.cpp
@@ -798,6 +798,7 @@ void Curve2D::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_baked_length"),&Curve2D::get_baked_length);
 	ObjectTypeDB::bind_method(_MD("interpolate_baked","offset","cubic"),&Curve2D::interpolate_baked,DEFVAL(false));
 	ObjectTypeDB::bind_method(_MD("get_baked_points"),&Curve2D::get_baked_points);
+	ObjectTypeDB::bind_method(_MD("tesselate","max_stages","tolerance_degrees"),&Curve2D::tesselate,DEFVAL(5),DEFVAL(4));
 
 	ObjectTypeDB::bind_method(_MD("_get_data"),&Curve2D::_get_data);
 	ObjectTypeDB::bind_method(_MD("_set_data"),&Curve2D::_set_data);
@@ -1330,6 +1331,7 @@ void Curve3D::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("interpolate_baked","offset","cubic"),&Curve3D::interpolate_baked,DEFVAL(false));
 	ObjectTypeDB::bind_method(_MD("get_baked_points"),&Curve3D::get_baked_points);
 	ObjectTypeDB::bind_method(_MD("get_baked_tilts"),&Curve3D::get_baked_tilts);
+	ObjectTypeDB::bind_method(_MD("tesselate","max_stages","tolerance_degrees"),&Curve3D::tesselate,DEFVAL(5),DEFVAL(4));
 
 	ObjectTypeDB::bind_method(_MD("_get_data"),&Curve3D::_get_data);
 	ObjectTypeDB::bind_method(_MD("_set_data"),&Curve3D::_set_data);