Log Message:
Update to 2.0.27:

Noteworthy changes in version 2.0.27 (2015-02-18)
-------------------------------------------------

 * gpg: Detect faulty use of --verify on detached signatures.

 * gpg: New import option "keep-ownertrust".

 * gpg: Uses SHA-256 for all signature types also on RSA keys.

 * gpg: Added support for algo names when generating keys using the
   --command-fd method.

 * gpg: Unless --allow-weak-digest-algos is used the insecure MD5
   based fingerprints are shown as all zeroe

 * gpg: Fixed DoS based on bogus and overlong key packets.

 * gpg: Better error reporting for keyserver problems.

 * Fixed several bugs related to bogus keyrings and improved some
   other code.