finished

Also, only calc_tessface() when needed, and use ExportHelper for RAW!

update addons enabled by default to use 'faces -> tessfaces' also grease pencil scatter and quake map export.

- dont import *
- dont use builtin names for vars
- strip trailing white space

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

Adding UNDO flag to import operators. Made this only for trunk addons.

- remove/comment unused variables
- remove unused imports
- fixed some bugs using incorrect variables

io_raw_mesh: fixes,.. already were done but gone 'lost' (no svn history, nothing in patch tracker,...). wtf?!?

update_tag() tags for depsgraph update only, update() executes normal recalculation and creates edge data.

- original author of the script (aurel) will maintain it 

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.]]

- in wiki page urls: "File_I-O/"     -> "Import-Export/"
- in categories:     "Import/Export" -> "Import-Export"
- 1 tab to 4 spaces
- some tuple formatting, just to be very picky :P

by Filiciss Muhgue (filiciss). Thanks a lot!

Part 2: Extensions

from Filiciss Muhgue (filiciss) 

- 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