Known issues

• When building ​Ethos 1.0 and ​JSON-GLib 1.0 with new version of ​GLib 2.0 version (happened with 2.30.0) an error unknown type name ‘G_CONST_RETURN’ might be encountered. It happens because the G_CONST_RETURN has been deprecated and removed in the new version. Simple workaround according to ​this site is to rename all occurences of ‘G_CONST_RETURN’ to 'const'.