Log Message:
Update to 2.2.10

Changelog:
Noteworthy changes in version 2.2.10 (2018-08-30)
-------------------------------------------------

  gpg: Refresh expired keys originating from the WKD.  [#2917]

  gpg: Use a 256 KiB limit for a WKD imported key.

  gpg: New option --known-notation.  [#4060]

  scd: Add support for the Trustica Cryptoucan reader.

  agent: Speed up starting during on-demand launching.  [#3490]

  dirmngr: Validate SRV records in WKD queries.