UI:

* Added very basic loading of .py files on startup to define panels.
  It now executes all .py files in .blender/ui on startup. Right now
  this contains the object buttons, the C code for it is commented out.

  These files should get embedded in the blender executable as well
  eventually, that's a bit more complicated so this works for now.

* For scons and cmake it seems to copy & find the files OK, for make
  only "make release" works (same with scripts/ folder it seems).

* Added BLI_gethome_folder function in BLI_util.h. This is adapted
  from bpy_gethome, and gives the path to a folder in .blender like
  scripts or ui.

There's plenty of things to figure out here about paths, embedding,
caching, user configs ...

release/ui/buttons_objects.py

@@ -0,0 +1,124 @@
+
+class OBJECT_PT_transform(bpy.types.Panel):
+	__label__ = "Transform"
+	__context__ = "object"
+
+	def draw(self, context):
+		ob = context.active_object
+		layout = self.layout
+
+		if not ob:
+			return
+
+		layout.template_column_flow(3)
+		layout.itemR(ob, "location")
+		layout.itemR(ob, "rotation")
+		layout.itemR(ob, "scale")
+
+class OBJECT_PT_groups(bpy.types.Panel):
+	__label__ = "Groups"
+	__context__ = "object"
+
+	def draw(self, context):
+		ob = context.active_object
+		layout = self.layout
+
+		if not ob:
+			return
+
+		layout.template_column_flow(2)
+		layout.itemR(ob, "pass_index")
+		layout.itemR(ob, "parent")
+
+		# layout.template_left_right()
+		# layout.itemO("OBJECT_OT_add_group");
+
+		for group in bpy.data.groups:
+			if ob in group.objects:
+				sublayout = layout.template_stack()
+
+				sublayout.template_left_right()
+				sublayout.itemR(group, "name")
+				# sublayout.itemO("OBJECT_OT_remove_group")
+
+				sublayout.template_column_flow(2)
+				sublayout.itemR(group, "layer")
+				sublayout.itemR(group, "dupli_offset")
+
+class OBJECT_PT_display(bpy.types.Panel):
+	__label__ = "Display"
+	__context__ = "object"
+
+	def draw(self, context):
+		ob = context.active_object
+		layout = self.layout
+
+		if not ob:
+			return
+
+		layout.template_column_flow(2)
+		layout.itemR(ob, "max_draw_type", text="Type")
+		layout.itemR(ob, "draw_bounds_type", text="Bounds")
+
+		layout.template_column_flow(2)
+		layout.itemR(ob, "draw_name", text="Name")
+		layout.itemR(ob, "draw_axis", text="Axis")
+		layout.itemR(ob, "draw_wire", text="Wire")
+		layout.itemR(ob, "draw_texture_space", text="Texture Space")
+		layout.itemR(ob, "x_ray", text="X-Ray")
+		layout.itemR(ob, "draw_transparent", text="Transparency")
+
+class OBJECT_PT_duplication(bpy.types.Panel):
+	__label__ = "Duplication"
+	__context__ = "object"
+
+	def draw(self, context):
+		ob = context.active_object
+		layout = self.layout
+
+		if not ob:
+			return
+
+		layout.template_column()
+		layout.itemR(ob, "dupli_type", text="")
+
+		if ob.dupli_type == "FRAMES":
+			layout.template_column_flow(2)
+			layout.itemR(ob, "dupli_frames_start", text="Start:")
+			layout.itemR(ob, "dupli_frames_end", text="End:")
+			layout.itemR(ob, "dupli_frames_on", text="On:")
+			layout.itemR(ob, "dupli_frames_off", text="Off:")
+
+class OBJECT_PT_animation(bpy.types.Panel):
+	__label__ = "Animation"
+	__context__ = "object"
+
+	def draw(self, context):
+		ob = context.active_object
+		layout = self.layout
+
+		if not ob:
+			return
+
+		layout.template_column()
+		
+		layout.template_slot("COLUMN_1")
+		layout.itemL(text="Time Offset:")
+		layout.itemR(ob, "time_offset_edit", text="Edit")
+		layout.itemR(ob, "time_offset_particle", text="Particle")
+		layout.itemR(ob, "time_offset_parent", text="Parent")
+		layout.itemR(ob, "slow_parent")
+		layout.itemR(ob, "time_offset", text="Offset:")
+		
+		layout.template_slot("COLUMN_2")
+		layout.itemL(text="Tracking:")
+		layout.itemR(ob, "track_axis", text="Axis")
+		layout.itemR(ob, "up_axis", text="Up Axis")
+		layout.itemR(ob, "track_rotation", text="Rotation")
+
+bpy.ui.addPanel(OBJECT_PT_transform, "BUTTONS_WINDOW", "WINDOW")
+bpy.ui.addPanel(OBJECT_PT_groups, "BUTTONS_WINDOW", "WINDOW")
+bpy.ui.addPanel(OBJECT_PT_display, "BUTTONS_WINDOW", "WINDOW")
+bpy.ui.addPanel(OBJECT_PT_duplication, "BUTTONS_WINDOW", "WINDOW")
+bpy.ui.addPanel(OBJECT_PT_animation, "BUTTONS_WINDOW", "WINDOW")
+