script/release.sh: This is a new script to do releases

script/release.sh: This is a new script to do releases

This will replace script/librelease.sh and is more flexible
and powerful.

  Usage: release.sh <PRODUCT> <COMMAND>

  PRODUCT: ldb, talloc, tevent, tdb, samba-rc
  COMMAND: fullrelease, create, push, upload, announce

GNUPGHOME=/path/to/private/gpg script/librelease.sh tdb
becomes
GNUPGHOME=/path/to/private/gpg script/release.sh tdb fullrelease

GNUPGHOME=/path/to/private/gpg script/librelease.sh samba
becomes
GNUPGHOME=/path/to/private/gpg script/release.sh samba-rc create
or later
GNUPGHOME=/path/to/private/gpg script/release.sh samba-stable create

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>