Turned select vertex path back on and added

back in selection history for bmesh->mesh
and mesh->bmesh conversions:
----------------------------------------------
Select Vertex Path had wrong invoke callback
(shouldn't have any?). 

Also selection history was not converted when 
doing bmesh->mesh or mesh->bmesh conversions. 
This meant that tabbing in and out of editmode
would make your selection history dissapear.
Undo pop would also not preserve selection 
history so any operators that relied on it
would not work when you adjusted their settings.

source/blender/bmesh/operators/mesh_conv.c

@@ -247,6 +247,48 @@ void mesh_to_bmesh_exec(BMesh *bm, BMOperator *op) {
 		CustomData_to_bmesh_block(&me->pdata, &bm->pdata, i, &f->head.data);
 	}
 
+	{
+		BMIter iter;
+		BMVert *vertex;
+		BMEdge *edge;
+		BMFace *face;
+		BMVert **vertex_array = MEM_callocN(sizeof(BMVert *) * bm->totvert,
+		                                  "Selection Conversion Vertex Pointer Array");
+		BMEdge **edge_array = MEM_callocN(sizeof(BMEdge *) * bm->totedge,
+		                                "Selection Conversion Edge Pointer Array");
+		BMFace **face_array = MEM_callocN(sizeof(BMFace *) * bm->totface,
+		                                "Selection Conversion Face Pointer Array");
+
+		for(i = 0, vertex = BMIter_New(&iter, bm, BM_VERTS_OF_MESH, NULL);
+		    vertex; i++, vertex = BMIter_Step(&iter)){
+			vertex_array[i] = vertex;
+		}
+
+		for(i = 0, edge = BMIter_New(&iter, bm, BM_EDGES_OF_MESH, NULL);
+		    edge; i++, edge = BMIter_Step(&iter)){
+			edge_array[i] = edge;
+		}
+
+		for(i = 0, face = BMIter_New(&iter, bm, BM_FACES_OF_MESH, NULL);
+		    face; i++, face = BMIter_Step(&iter)){
+			face_array[i] = face;
+		}
+
+		for(i = 0; i < me->totselect; i++){
+			if(me->mselect[i].type == ME_VSEL){
+				BM_store_selection(bm, vertex_array[me->mselect[i].index]);
+			}else if(me->mselect[i].type == ME_ESEL){
+				BM_store_selection(bm, edge_array[me->mselect[i].index]);
+			}else if(me->mselect[i].type == ME_FSEL){
+				BM_store_selection(bm, face_array[me->mselect[i].index]);
+			}
+		}
+
+		MEM_freeN(vertex_array);
+		MEM_freeN(edge_array);
+		MEM_freeN(face_array);
+	}
+
 	BLI_array_free(fedges);
 	BLI_array_free(verts);
 	
@@ -635,6 +677,28 @@ void bmesh_to_mesh_exec(BMesh *bm, BMOperator *op) {
 
 	mesh_update_customdata_pointers(me);
 
+	{
+		BMEditSelection *selected;
+		me->totselect = BLI_countlist(&(bm->selected));
+
+		me->mselect = MEM_callocN(sizeof(MSelect) * me->totselect, "Mesh selection history");
+
+
+		for(i = 0, selected = bm->selected.first; selected; i++, selected = selected->next){
+			if(selected->type == BM_VERT){
+				me->mselect[i].type = ME_VSEL;
+
+			}else if(selected->type == BM_EDGE){
+				me->mselect[i].type = ME_ESEL;
+
+			}else if(selected->type == BM_FACE){
+				me->mselect[i].type = ME_FSEL;
+			}
+
+			me->mselect[i].index = BM_GetIndex(selected->data);
+		}
+	}
+
 	if (me->key) {
 		KeyBlock *actkey= BLI_findlink(&me->key->block, bm->shapenr-1);
 

source/blender/editors/mesh/bmesh_tools.c

@@ -2645,7 +2645,6 @@ void MESH_OT_select_vertex_path(wmOperatorType *ot)
 
 	/* api callbacks */
 	ot->exec= select_vertex_path_exec;
-	ot->invoke= WM_menu_invoke;
 	ot->poll= ED_operator_editmesh;
 
 	/* flags */

source/blender/makesdna/DNA_meshdata_types.h

@@ -250,8 +250,8 @@ typedef struct PartialVisibility {
 #define ME_DRAW_ACT			4
 
 /* mselect->type */
-#define ME_VSEl	0
-#define ME_ESEl 1
+#define ME_VSEL	0
+#define ME_ESEL 1
 #define ME_FSEL 2
 
 /* mtface->flag */