move script directories for internal blender scripts.

ui/ --> startup/bl_ui
op/ --> startup/bl_operators

scripts/startup/ is now the only auto-loading script dir which gives some speedup for blender loading too.

~/.blender/2.56/scripts/startup works for auto-loading scripts too.

release/scripts/startup/bl_ui/properties_data_lattice.py

@@ -0,0 +1,82 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8 compliant>
+import bpy
+from rna_prop_ui import PropertyPanel
+
+
+class DataButtonsPanel():
+    bl_space_type = 'PROPERTIES'
+    bl_region_type = 'WINDOW'
+    bl_context = "data"
+
+    @classmethod
+    def poll(cls, context):
+        return context.lattice
+
+
+class DATA_PT_context_lattice(DataButtonsPanel, bpy.types.Panel):
+    bl_label = ""
+    bl_options = {'HIDE_HEADER'}
+
+    def draw(self, context):
+        layout = self.layout
+
+        ob = context.object
+        lat = context.lattice
+        space = context.space_data
+
+        split = layout.split(percentage=0.65)
+        if ob:
+            split.template_ID(ob, "data")
+            split.separator()
+        elif lat:
+            split.template_ID(space, "pin_id")
+            split.separator()
+
+
+class DATA_PT_lattice(DataButtonsPanel, bpy.types.Panel):
+    bl_label = "Lattice"
+
+    def draw(self, context):
+        layout = self.layout
+
+        lat = context.lattice
+
+        row = layout.row()
+        row.prop(lat, "points_u")
+        row.prop(lat, "interpolation_type_u", text="")
+
+        row = layout.row()
+        row.prop(lat, "points_v")
+        row.prop(lat, "interpolation_type_v", text="")
+
+        row = layout.row()
+        row.prop(lat, "points_w")
+        row.prop(lat, "interpolation_type_w", text="")
+
+        row = layout.row()
+        row.prop(lat, "use_outside")
+        row.prop_search(lat, "vertex_group", context.object, "vertex_groups", text="")
+
+
+class DATA_PT_custom_props_lattice(DataButtonsPanel, PropertyPanel, bpy.types.Panel):
+    COMPAT_ENGINES = {'BLENDER_RENDER', 'BLENDER_GAME'}
+    _context_path = "object.data"
+    _property_type = bpy.types.Lattice