2.29.11:

* Gio::AppInfo:
  - launch(): Use a vector instead of a ListHandle and assume that it contains 
  Gio::File rather than strings. This was unusable before.
  - Add launch() overload with no launch_context parameter.
  - Add launch() overload taking one file, 
  - launch_uri(): Deprecate the method taking a GAppLaunchContext*, adding 
    one taking a Gio::AppLaunchContext instead.
  - Add launch_uri() taking one URI.
  (Murray Cumming)
* Add test case for a recent fix in libsigc++ with RefPtr.
  (Kjell Ahlstedt) Bug #564005#c14 (Alexander Shaduri)
* tools: Add python .def generation scripts removed from PyGObject.
  (Murray Cumming)
* gmmproc: Allow _STRUCT_NOT_HIDDEN to be used even when multiple classes 
  are defined in one file.
  (José Alburquerque)