Patch merged into coreboot/master: release: add release script

the following patch was just integrated into master:
commit f61c9e9a59cd6a9dcd358f09a4715ac79d0a7a7d
Author: Patrick Georgi 
Date:   Mon Jul 13 22:48:46 2015 +0200

release: add release script

Change-Id: Ib3cd29cf1875e7ad182262d7caa33ff35f28aa85
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/10909
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/10909 for details.

-gerrit