Idle.Add, Idle.AddSeconds, Timeout.Add, Timeout.AddSeconds methods overloads are generalized:
* no priority (for default priority)
* enum priority (for standard priorities)
* int priority (for custom priority)
* overloads call main method with int priority
Fixed leak in Timeout.Add(priority): method was not using userData and DestroyHelper.NotifyHandler.
* Fixed marshaling for reading child properties.
* Enabled child properties for Box, Grid, Stack in api xml.
* Added sample/test for using child properties (ChildPropertiesSection).
This matches the other saving-related methods for Gdk.Pixbuf
- `gdk_pixbuf_save_to_stream` was skipped for the auto-generated bindings (with the warning "Ellipsis parameter: hide and bind manually")
- `gdk_pixbuf_save_to_streamv` was in the generated bindings, but incorrect: the `option_keys` and `option_values` arguments had type `string` rather than `string[]`
Some GValue types support null value but code was not checking for .NET "null" and get null ref exception. Fixed nulls for g_value_set_variant, g_value_set_object, g_value_set_boxed as in GLib docs.
This fixes NodeView with null pixbuf column.
Read all GError fields in GException constructor and free GError memory.
Quote from gtksharp2 fix: The original impl did not take into account exceptions marshalling across thread boundaries so it could end up with the error being accessed after being disposed.
Some Pixbuf, PixbufAnimation functions on Windows is exported with "_utf8" suffix.
I hid generated versions, copied and modified code to use "_utf8" on Windows.
Also hid "gdk_pixbuf_new_from_resource*", "gdk_pixbuf_animation_new_from_resource" because they are using GResources and we already have constructors for .NET resources.
This method performs a GetRawObject, but also increases the refcount.
This is (at least) needed in cases where you wish to have a class inherting a widget,
and use a builder in the constructor : base (builder.GetRawObject("name"))
Because no ref is taken the eventual freeing of the builder will cause the our object (this)
to have a refcount 0.
This is an issue since the freeing of our ToggleRef (which should happen later) performs an unref.
