Log Message:
Update json-glib to 0.10.0.

Overview of changes for 0.10.0
==============================
* Fix generation of doubles [Cornelius Hald]
* Add more units to the test suite
* Add JsonNode macros for quick type checking
* Guarantee insertion order when parsing and generating JSON Objects
* Serialize GParamSpecObject properties
* Add serialization and deserialization for GBoxed types
* Add API for serializing GObjects to, and deserializing from, JsonNode
* Build environment fixes
* Documentation fixes
* Generate correct introspection data
* Make JsonSerializable in complete control of deserialization [Tristan Van
  Berkom]