upgrade baresip, restund, libre, librem to version 0.4.0

upgrade baresip, restund, libre, librem to version 0.4.0

Hi,

this patch upgrades the following packages to v0.4.0:

    baresip v0.4.0 (Portable and modular SIP User-Agent with audio and video support)
    restund v0.4.0 (Modular STUN/TURN server)
    libre   v0.4.0 (Generic library for real-time communications with async IO support)
    librem  v0.4.0 (Audio and video processing media library)

detailed changes can be found in <package>/docs/ChangeLog
(See http://www.creytiv.com/)

Please review and apply if OK.

Signed-Off-By: Alfred E. Heggestad  <aeh@db.org>