Changes in version 3.1.4 are:
 * New GcrListSelector class for selecting multiple keys.
 * Add icons for key and key pair.
 * Gcr now has support for loading of GnuPG keys from gpg, including photos.
 * New gcr dependency on p11-kit for loading PKCS#11 modules.
 * Remove support for GTK+ 2.x
 * Implement calculation of fingerprints in gcr for keys.
 * Fix problems in daemon if IPC lock or FS capabilities are not available.
 * Bug fixes and build fixes.
 * Code cleanup and refactoring.