Bugfixes for frame number boost:

- Found several places, where people explicitly casted the frame number
  to short.
- Fixed the crash in BPY_interface by adding an empty line (to make it
  recompile everywhere, make clean doesn't help...)

  For the build system maintainers:

  Problem was: The change in makesdna changed the position of the
  scriptlink structure. BPY_interface.c somehow didn't get recompiled
  (not even after a make clean!!!) which triggered crashes on adding
  scriptlinks.

source/blender/python/api2_2x/Lattice.c

@@ -752,7 +752,7 @@ static PyObject *Lattice_insertKey( BPy_Lattice * self, PyObject * args )
 	if( frame > 0 ) {
 		frame = EXPP_ClampInt( frame, 1, MAXFRAME );
 		oldfra = G.scene->r.cfra;
-		G.scene->r.cfra = (short)frame;
+		G.scene->r.cfra = (int)frame;
 	}
 //      else just use current frame, then
 //              return (EXPP_ReturnPyObjError (PyExc_RuntimeError,
@@ -763,7 +763,7 @@ static PyObject *Lattice_insertKey( BPy_Lattice * self, PyObject * args )
 	allspace(REMAKEIPO, 0);
 
 	if( frame > 0 )
-		G.scene->r.cfra = (short)oldfra;
+		G.scene->r.cfra = (int)oldfra;
 
 	Py_INCREF( Py_None );
 	return Py_None;

source/blender/python/api2_2x/NMesh.c

@@ -1248,7 +1248,7 @@ static PyObject *NMesh_insertKey( PyObject * self, PyObject * args )
 	if( fra > 0 ) {
 		fra = EXPP_ClampInt( fra, 1, NMESH_FRAME_MAX );
 		oldfra = G.scene->r.cfra;
-		G.scene->r.cfra = (short)fra;
+		G.scene->r.cfra = (int)fra;
 	}
 
 	if( !mesh )
@@ -1259,7 +1259,7 @@ static PyObject *NMesh_insertKey( PyObject * self, PyObject * args )
 	allspace(REMAKEIPO, 0);
 
 	if( fra > 0 )
-		G.scene->r.cfra = (short)oldfra;
+		G.scene->r.cfra = (int)oldfra;
 
 	return EXPP_incr_ret( Py_None );
 }

source/blender/python/api2_2x/Pose.c

@@ -463,7 +463,7 @@ static PyObject *PoseBone_insertKey(BPy_PoseBone *self, PyObject *args)
 
 	//set the frame we want insertion on
 	oldframe = G.scene->r.cfra;
-	G.scene->r.cfra = (short)frame;
+	G.scene->r.cfra = frame;
 
 	//add the action channel if it's not there
 	verify_action_channel(((BPy_Object*)parent_object)->object->action, 
@@ -498,7 +498,7 @@ static PyObject *PoseBone_insertKey(BPy_PoseBone *self, PyObject *args)
 	}
 
 	//flip the frame back
-	G.scene->r.cfra = (short)oldframe;
+	G.scene->r.cfra = oldframe;
 
 	//update the IPOs
 	remake_action_ipos (((BPy_Object*)parent_object)->object->action);