Bitbucket could not parse commit log with GPG signed

Bitbucket could not parse commit log with GPG signed.
but the github doing this well.

for example:

huzhifeng committed 18 minutes ago (raw commit)
gpgsig ----BEGIN PGP SIGNATURE----
Version: GnuPG v1.4.5 (GNU/Linux)
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qAyUA7q8h3Q=
=UGWs
----END PGP SIGNATURE----
Create the Deyi Open API Service Project
We need to create the Open API Service,
if we can connect more developer of the world.
we can growth bigger and bigger
Signed-off-by: zhifeng hu [hzfeng%40vip.deyi.com]