Changes in version 42.0 are:
 * secret-portal: Properly check the default keyring [!49]
 * Build fixes [!44, !48, !50]
 * ssh-agent: Fix crash by uninitialized GMutex [!45]
 * fix looping off the end of the operations array [#105, !47]
 * readme: Mention libsecret instead of deprecated libgnome-keyring [!37]
 * daemon: Make it systemd-activatable through the control socket [!25]
 * Updated translations