Xfconf 4.7.0
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* Add prefetching and caching support to XfconfChannel. Should speed
things up a bit on app startup, and avoid blocking waiting on DBus
in other cases.
* New simpler (internal) handling of property bindings.
* Use new xdt macros, this requires xfce-dev-tools 4.7.2.
* New tests for object bindings.
* Updated translations: es, kk, ca, sv, hu, ro, gl, ja, cs, lv, ast,
zh_CN, ur, ur_PK, da, eu, pt.