audio/re:

• Update to 0.4.16
• Organise pkg-plist alphabetically

audio/rem:

• Update to 0.4.7
• Organise pkg-plist alphabetically

audio/baresip:

• Update to 0.4.19
• Remove CELT option (no longer supported upstream - replaced by OPUS)
• Add EXAMPLES option to install new ${WRKSRC}/docs/examples
• Update minimum required versions of audio/re and audio/rem [1]

Changes this release:

https://github.com/alfredh/baresip/blob/v0.4.19/docs/ChangeLog

[1] https://github.com/alfredh/baresip/blob/v0.4.19/docs/README#L324

This upate also allows baresip to build successfully once
multimedia/ffmpeg is updated to 3.0.x.
Note that multimedia/ffmpeg is currently still on the 2.8.x branch,
however this patch is backwards compatible with ffmpeg 2.8.x.

Reported by: antoine (via exp-run)
Reviewed by: mat (mentor)
Approved by: crees (maintainer), adamw (mentor)
Differential Revision: https://reviews.freebsd.org/D6822