Log Message:
dconf: update to 0.34.0.

Changes in dconf 0.33.2
=======================

 - Drop references to GDBusConnection objects when D-Bus connections are closed
   (Andre Magalhaes, #51)

Changes in dconf 0.33.1
=======================

 - Factor out a common method to route completion of D-Bus methods through
   (Cosimo Cecchi, #29)
 - build: Use weak bindings in gvdb to fix linking with LLD
   (Ting-Wei Lan, #28)