Remove module add_utils.py which fully duplicates functions
from trunk's object_utils.py module and switch all dependent
addons to use module from trunk.

- Check for keymap availability to suppress warning messages when running
  blender in background mode

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

* General Rule (for Ivygen and Sapling): If you need more code for declaring the layouts than for the props itself, something is wrong. ;-)
* if > elif

READ THIS TO AVOID A LOT OF WORK!

New way of linking to tracker pages: just use the parameter "aid" (artifact ID),
to avoid a lot of manual updates later in wiki and svn.

Example:
=========

OLD WAY TO LINK TO TRACKER
-----------------------------

Complete url of a script in Upload
http://projects.blender.org/tracker/index.php?func=detail&aid=25349&group_id=153&atid=467

If we move this in contrib this url will become
http://projects.blender.org/tracker/index.php?func=detail&aid=25349&group_id=153&atid=468
467 becomes 468, so we have to update this in wiki page.

Later on, when this moves into Trunk, the url will become
http://projects.blender.org/tracker/index.php?func=detail&aid=25349&group_id=153&atid=469
468 becomes 469, so we have to update the url in wiki page and svn.

Annoying!

NEW WAY TO LINK TO TRACKER
-----------------------------

Best way to link to tracker page is using:
http://projects.blender.org/tracker/index.php?func=detail&aid=25349

Use "func=detail"
Use "aid"            (which is the "artifact ID")

DON'T use "group_id" (which is the project ID, bf-extensions is project 153)
DON'T use "atid"     (which is the "artifacts tracker ID")

Like this, the url is unique, and we will avoid to update wiki pages and svn after moving pages
 


[[Split portion of a mixed commit.]]

hopefully the last one, moved the operator into the right place in ops so it can be called from console without error.

recoded for add_utils. reduced the code by half. but there is now a bug with adding with entering into edit mode. no show stopper. but needs to be investigated

rev: 32411

scripts tested as working

- fixed the previously mentioned bug
- somehow setting the Curve.offset screwed things up
- simply removed it, wasn't used anyway
- updated api revision number

by Filiciss Muhgue (filiciss). Thanks a lot!

Part 2: Extensions

- minor cleanup
- there seems to be a bug with the scale factor, maybe due to all the recent api changes? The output is different than a few weeks ago, although still functional.
- has to be investigated.

- comforming after my commit in bf-blender:
  - removed the categories from addons names
  - made 'version' a tuple of integers
  - added 'api' field
  - formatted wiki and trackers pages and added where needed (empty pages are yet to be written by the authors though)

- more conforming:
  - 1 tab = 4 spaces

- please check everything is fine in case I made some gross mistake

- fixes for api changes

- cleanup: removed unnecessary options lists

- mesh_surface_sketch.py
- render_renderfarmfi.py
- space_view3d_align_tools.py
- object_cloud_gen.py

also move bl_addon_info to the top for faster parsing.

These scritps still need changes related to parent classes
- mesh_surface_sketch.py
- render_renderfarmfi.py
- space_view3d_align_tools.py
- object_cloud_gen.py

Fixed some descriptions and locations

- every script is now (2,5,3)
- added warning field in bl_addon_info so every dev knows about this: when "warning" field is not empty, a warning icon appears and text alerts 
users about a buggy script (this is used during development, released scripts should must have this empty of course)
- formatted scripts info like this
  - GPL
  - docstring
  - bl_addon_info
  - imports
  so that the actual script starts after the bl_addon_info dict
- removed old 2.4x cruft like __url__, __bpydoc__, __author__ etc, not needed anymore (when the case integrated info with bl_addon_info and in 
case of one email meta just put it in the GPL)

- next commits I plan to do contrib scripts and conform io scripts naming 

- testing the new button "report a bug", 
  see commit from dingto here http://lists.blender.org/pipermail/bf-blender-cvs/2010-May/028285.html