added warning to panel measure

expect more.
Thanks Mindrones for this cool feature.

* See http://lists.blender.org/pipermail/bf-committers/2010-September/028654.html

- 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.

safely create new edges.
trailing whitespace cleanup.

- include bl_addon_info just under the gpl, faster parsing.
- use newstyle classes + __slots__ to disallow arbitrary attributes to be set.
- dont cycle ecitmode, instead use calc_edges argument to mesh update.
- use string formatting for print's.

* Some minor formatting
* Synced with my local copy.

removed warning & merged current api with loopduplicates fixes

fix for api changes
thanks to loopduplicate

[[Split portion of a mixed commit.]]

from Filiciss Muhgue (filiciss) 

update for changes in rna io_import_scene_mhx.py mapto isnt working as it should since this can now only be accessed as many bools

* Removed some TODO comments
* Updated version log

new: spherical mesh, strata functions, interactive update, shade
smooth.

- 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

- some conforming


[[Split portion of a mixed commit.]]

moved to release, this handy script provides an easy to understand overview of the scene's content & databases

[[Split portion of a mixed commit.]]