BPython: bug fixes / patches from trackers

(excuse me for not committing earlier)

Patches by Ken Hughes (thanks for all bug fixes!):

1) Setting a scene's MapOld and MapNew values in python does nothing:
bug #2566 submitted by Dominic Agoro-Ombaka (dmao):
https://projects.blender.org/tracker/?func=detail&aid=2566&group_id=9&atid=125
patch #2571:
https://projects.blender.org/tracker/index.php?func=detail&aid=2571&group_id=9&atid=127

2) Calling the file selector after setting the progress bar crashes Blender:
bug #2418 submitted by Alessandro Garosi (brandano):
https://projects.blender.org/tracker/?func=detail&aid=2418&group_id=9&atid=125
patch #2568:
https://projects.blender.org/tracker/index.php?func=detail&aid=2568&group_id=9&atid=127

3) Menus always generate same event when canceled:
bug #2429 submitted by Campbell Barton:
https://projects.blender.org/tracker/?func=detail&aid=2429&group_id=9&atid=125
patch #2579:
https://projects.blender.org/tracker/?func=detail&aid=2579&group_id=9&atid=127

4) Add a vertex to a mesh with groups using a script and then edit that mesh hangs blender:
bug #2211 reported by German Alonso Tamayo (servivo):
https://projects.blender.org/tracker/index.php?func=detail&aid=2211&group_id=9&atid=125
patch #2580
#https://projects.blender.org/tracker/index.php?func=detail&aid=2580&group_id=9&atid=127

About bug #2033, I'm still looking at it, committing a small fix now.

=====

Patches by Campbell Barton (thanks!):

#2482: BGL pydocs fix broken links
https://projects.blender.org/tracker/index.php?func=detail&aid=2482&group_id=9&atid=127

#2426: Large text in Draw.Text and Draw.GetStreingWidth
https://projects.blender.org/tracker/index.php?func=detail&aid=2462&group_id=9&atid=127

#2521: scene.getActiveObject()
https://projects.blender.org/tracker/index.php?func=detail&aid=2521&group_id=9&atid=127

#2523: NMesh.GetNames()
https://projects.blender.org/tracker/index.php?func=detail&aid=2523&group_id=9&atid=127

- docs also updated

source/blender/python/api2_2x/Lattice.c

@@ -202,6 +202,7 @@ PyTypeObject Lattice_Type = {
 	0, 0, 0, 0, 0, 0,
 	BPy_Lattice_methods,	/* tp_methods */
 	0,			/* tp_members */
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 };
 
 static int Lattice_InLatList( BPy_Lattice * self );
@@ -684,11 +685,11 @@ static PyObject *Lattice_applyDeform( BPy_Lattice * self )
 		return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
 						"Lattice must be linked to an object to apply it's deformation!" ) );
 
-	//deform children
+	/* deform children */
 	base = FIRSTBASE;
 	while( base ) {
-		if( ( par = base->object->parent ) ) {
-			if( par->type == OB_LATTICE ) {
+		if( ( par = base->object->parent ) ) { /* checking if object has a parent, assigning if so */
+			if((par->type == OB_LATTICE) && (self->Lattice == par->data)) {
 				object_deform( base->object );
 			}
 		}