A few fixes:

* Loading old files didn't initialise the new rotation variables properly
* Fixed some errors with the newly added operator for copying RNA-paths for properties
* Auto-keyframing now correctly refreshes animation editors after adding keyframes. Made the keyingsets code send notifiers again, but now using the newly added WM_main_event_add()  (thanks Brecht)
* A few UI tweaks again for animation stuff (timeline, keyingsets UI)

release/scripts/ui/buttons_object.py

@@ -26,8 +26,6 @@ class OBJECT_PT_transform(ObjectButtonsPanel):
 		
 		ob = context.object
 		
-		
-
 		row = layout.row()
 		
 		row.column().itemR(ob, "location")

release/scripts/ui/buttons_scene.py

@@ -474,7 +474,7 @@ class SCENE_PT_keying_sets(SceneButtonsPanel):
 		scene = context.scene
 		
 		row = layout.row()
-		row.itemL(text="Keying Sets")
+		row.itemL(text="Keying Sets:")
 		
 		row = layout.row()
 		
@@ -512,7 +512,7 @@ class SCENE_PT_keying_set_paths(SceneButtonsPanel):
 		ks = scene.active_keying_set
 		
 		row = layout.row()
-		row.itemL(text="Paths")
+		row.itemL(text="Paths:")
 		
 		row = layout.row()
 		

release/scripts/ui/space_time.py

@@ -100,7 +100,7 @@ class TIME_MT_frame(bpy.types.Menu):
 		layout.itemS()
 		
 		sub = layout.row()
-		sub.active = tools.enable_auto_key
+		#sub.active = tools.enable_auto_key
 		sub.itemM("TIME_MT_autokey")
 
 class TIME_MT_playback(bpy.types.Menu):

source/blender/blenloader/intern/readfile.c

@@ -9912,6 +9912,24 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 
 	/* put 2.50 compatibility code here until next subversion bump */
 	{
+		Object *ob;
+		
+		/* New variables for axis-angle rotations and/or quaternion rotations were added, and need proper initialisation */
+		for (ob= main->object.first; ob; ob= ob->id.next) {
+			/* new variables for all objects */
+			ob->quat[0]= 1.0f;
+			ob->rotAxis[1]= 1.0f;
+			
+			/* bones */
+			if (ob->pose) {
+				bPoseChannel *pchan;
+				
+				for (pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
+					/* just need to initalise rotation axis properly... */
+					pchan->rotAxis[1]= 1.0f;
+				}
+			}
+		}
 	}
 
 	/* WATCH IT!!!: pointers from libdata have not been converted yet here! */

source/blender/editors/animation/drivers.c

@@ -565,7 +565,7 @@ void ANIM_OT_paste_driver_button (wmOperatorType *ot)
 }
 
 
-/* Paste Driver Button Operator ------------------------ */
+/* Copy to Clipboard Button Operator ------------------------ */
 
 static int copy_clipboard_button_exec(bContext *C, wmOperator *op)
 {
@@ -579,7 +579,7 @@ static int copy_clipboard_button_exec(bContext *C, wmOperator *op)
 	memset(&ptr, 0, sizeof(PointerRNA));
 	uiAnimContextProperty(C, &ptr, &prop, &index);
 
-	if (ptr.data && prop) { // && RNA_property_animateable(ptr.data, prop)
+	if (ptr.data && prop) {
 		path= RNA_path_from_ID_to_property(&ptr, prop);
 		
 		if (path) {
@@ -597,15 +597,14 @@ void ANIM_OT_copy_clipboard_button(wmOperatorType *ot)
 	/* identifiers */
 	ot->name= "Copy Data Path";
 	ot->idname= "ANIM_OT_copy_clipboard_button";
-	ot->description= "Copy the rna data path to the clipboard.";
+	ot->description= "Copy the RNA data path for this property to the clipboard.";
 
 	/* callbacks */
 	ot->exec= copy_clipboard_button_exec;
-	//op->poll= ??? // TODO: need to have some driver to be able to do this...
+	//op->poll= ??? // TODO: need to have some valid property before this can be done
 
 	/* flags */
-	ot->flag= 0;
+	ot->flag= OPTYPE_REGISTER;
 }
 
-
 /* ************************************************** */

source/blender/editors/animation/keyingsets.c

@@ -349,6 +349,7 @@ static int add_keyingset_button_exec (bContext *C, wmOperator *op)
 				
 			/* add path to this setting */
 			BKE_keyingset_add_destination(ks, ptr.id.data, NULL, path, index, pflag, KSP_GROUP_KSNAME);
+			ks->active_path= BLI_countlist(&ks->paths);
 			success= 1;
 			
 			/* free the temp path created */
@@ -1354,6 +1355,9 @@ int modify_keyframes (Scene *scene, ListBase *dsources, bAction *act, KeyingSet
 					}
 						break;
 				}
+				
+				/* send notifiers for updates (this doesn't require context to work!) */
+				WM_main_add_notifier(NC_ANIMATION|ND_KEYFRAME_EDIT, NULL);
 			}
 		}
 	}
@@ -1484,6 +1488,9 @@ int modify_keyframes (Scene *scene, ListBase *dsources, bAction *act, KeyingSet
 					}
 						break;
 				}
+				
+				/* send notifiers for updates (this doesn't require context to work!) */
+				WM_main_add_notifier(NC_ANIMATION|ND_KEYFRAME_EDIT, NULL);
 			}
 		}
 	}

source/blender/editors/interface/interface_anim.c

@@ -311,7 +311,8 @@ void ui_but_anim_menu(bContext *C, uiBut *but)
 		}
 		
 		uiItemS(layout);
-		uiItemBooleanO(layout, "Copy Data Path", 0, "ANIM_OT_copy_clipboard_button", "all", 1);
+		
+		uiItemO(layout, "Copy Data Path", 0, "ANIM_OT_copy_clipboard_button");
 		
 		uiPupMenuEnd(C, pup);
 	}

source/blender/editors/space_outliner/outliner.c

@@ -3939,6 +3939,7 @@ static void do_outliner_keyingset_editop(SpaceOops *soops, KeyingSet *ks, ListBa
 						/* add a new path with the information obtained (only if valid) */
 						// TODO: what do we do with group name? for now, we don't supply one, and just let this use the KeyingSet name
 						BKE_keyingset_add_destination(ks, id, NULL, path, array_index, flag, groupmode);
+						ks->active_path= BLI_countlist(&ks->paths);
 					}
 						break;
 					case KEYINGSET_EDITMODE_REMOVE:
@@ -3950,6 +3951,7 @@ static void do_outliner_keyingset_editop(SpaceOops *soops, KeyingSet *ks, ListBa
 							/* free path's data */
 							// TODO: we probably need an API method for this 
 							if (ksp->rna_path) MEM_freeN(ksp->rna_path);
+							ks->active_path= 0;
 							
 							/* remove path from set */
 							BLI_freelinkN(&ks->paths, ksp);

source/blender/makesrna/intern/rna_animation_api.c

@@ -54,6 +54,7 @@ static void rna_KeyingSet_add_destination(KeyingSet *keyingset, ReportList *repo
 	/* if data is valid, call the API function for this */
 	if (keyingset) {
 		BKE_keyingset_add_destination(keyingset, id, group_name, rna_path, array_index, flag, grouping_method);
+		keyingset->active_path= BLI_countlist(&keyingset->paths); 
 	}
 	else {
 		BKE_report(reports, RPT_ERROR, "Keying Set Destination could not be added.");