Don't embed fonts in Blender to avoid possible license issues

No longer embed fonts in the Blender executable, but store them in the font folder along with the international fonts.

This is to avoid a potential issue between the font and GPL licenses. It is not clear if there is really a problem, but to avoid wasting time on discussions this commit makes the change.

See here:
http://lists.blender.org/pipermail/bf-committers/2013-September/041754.html

This turns out to be quite a big patch. I have only tested it on OS X so far, testing is needed on Linux and Windows still. Especially things to test are:
* saving game engine runtimes (add text object in scene and save, see if it still there when running the game player)
* translation and international fonts
* text editor monospace font
* 3D text object editing

[sergey.vfx, 2013-10-02 16:30:56]

From quick glance seems all reasonable changes.

Just one thing. Perhaps it worth having defines fr font names. We might need to
rename droidsans to something like blender-i18n to be 100% we're not violating
anything by providing modified droid font under unchanged name.

https://codereview.appspot.com/14282043/diff/1/source/blender/blenlib/intern/...
File source/blender/blenlib/intern/fileops.c (right):

https://codereview.appspot.com/14282043/diff/1/source/blender/blenlib/intern/...
source/blender/blenlib/intern/fileops.c:119: FILE *f;
Indentation seems to be strange in this function.

[brechtvl, 2013-10-02 17:35:26]

On 2013/10/02 16:36:26, brechtvl wrote:

I just noticed there's something missing from this patch, the font files in
release/datafiles need to be moved to release/datafiles/fonts for this to work.
I couldn't include that in the diff, so you'll have to do that manually to test
the patch.

[irieshinsuke, 2013-10-02 19:08:11]

Two things:

1. The international fonts are unconditionally installed regardless of
WITH_INTERNATIONAL/WITH_BF_INTERNATIONAL.  These shouldn't be installed if
WITH_INTERNATIONAL=OFF or WITH_BF_INTERNATIONAL=False.

2. In blf_font.c, BLI_strict_flags.h is included twice.

https://codereview.appspot.com/14282043/diff/15001/source/blender/blenfont/in...
File source/blender/blenfont/intern/blf_font.c (right):

https://codereview.appspot.com/14282043/diff/15001/source/blender/blenfont/in...
source/blender/blenfont/intern/blf_font.c:53: #include "BLI_strict_flags.h"
BLI_strict_flags.h is included twice here.

[irieshinsuke, 2013-10-05 13:19:17]

I noticed Bfont cannot be used for a text object...  Loading the font failed and
Blender crashed:

Internal error, builtin font not loaded
Writing: /tmp/blender.crash.txt
Segmentation fault (core dumped)

[irieshinsuke, 2014-01-23 06:09:41]

Any update on this? Do you plan to merge this into 2.70 release?

[brechtvl, 2014-01-23 13:54:08]

Not really, I still don't think there is a license conflict. I'll leave the
decision to Ton, you should mail him.