Addresses new behavior of object.to_mesh().

This is corresponding part for D4875.

Reviewers: brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D4876

Mainly search-and-replace approach.

Tested the enabled-by-default export/import addons. Seems to work with
an exception of X3D which is still referencing Blender Internal material
properties.

Reviewers: brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D4866

This ports the already working addons. The disabled x3d, psk, lwo, 3ds,
raw, dxf addons still need to be converted.

Exports error free.
Set calc_tessface=False in ob.to_mesh
Do not know if that will yield the same result as the previous.
Will have to wait for bug reports if not.

Based on patch by Kai Kostack (@kaikostack), thanks!

Assumed active object

Actually issue was in pc2 exporter, which was not handling subframes correctly.

make addons blender versions consistent

finished

Code generating frame range was buggy...

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

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.]]