json-glib: Update to 1.2.2
json-glib: Update to 1.2.2

https://bugzilla.gnome.org/show_bug.cgi?id=769974

nirbheek/cerbero,atsushieno/cerbero,centricular/cerbero,EricssonResearch/cerbero,EricssonResearch/cerbero,GStreamer/cerbero,shoreflyer/cerbero,GStreamer/cerbero,OptoFidelity/cerbero,flexVDI/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,nirbheek/cerbero,justinjoy/cerbero,centricular/cerbero,justinjoy/cerbero,fluendo/cerbero,OptoFidelity/cerbero,OptoFidelity/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,centricular/cerbero,shoreflyer/cerbero,fluendo/cerbero,flexVDI/cerbero,OptoFidelity/cerbero,shoreflyer/cerbero,fluendo/cerbero,atsushieno/cerbero,shoreflyer/cerbero,fluendo/cerbero,GStreamer/cerbero,justinjoy/cerbero,centricular/cerbero,flexVDI/cerbero,atsushieno/cerbero,centricular/cerbero,justinjoy/cerbero,fluendo/cerbero,atsushieno/cerbero,GStreamer/cerbero,shoreflyer/cerbero,nirbheek/cerbero,EricssonResearch/cerbero,nirbheek/cerbero,atsushieno/cerbero,GStreamer/cerbero