[Mm10s] 2020-06-08

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> ### Last week:
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>    * [Idle-VM] w/Pablo. Worker problem with delays
>    worker version was not interrupting the aio. We spent some time here and this was a non existing
>    problem at the end (but we found and fix a bug on Spec2-Gtk).
>    * [Idle-VM] problem when save&quit image with gtk backend
>    fix a bug happening when application was shutting down and some events want still happen, who
>    causes a callback that is alredy discarded to be executed.
>    * [Idle-VM] new version of memory access
>    test, bench and merge of new memory access primitive
>    (lowcode didn't applied, finally)
>    * [spec2] preparation of a window box to make some tests there.
>    * [spec2] gtk backend now has an image-side based tree store, which allows much better
>    interoperability. Next task is to migrate the adaptors: list, table and treetable (not trivial,
>    but needed)
>    * [TFFI] added a new type: FFIBoolean32 to handle the fact that many libraries (in my case,
>    Gtk), do not use bool=8bit implementation. Now, users need to map their boolean (in my case,
>    gboolean) to this type by hand. I didn't find a better way to fix this issue :(
>    * [spec2] gtk backend now answers propertly to keyboard events in windows.
>    * [spec2] fix a (new) bug on GtkTreeView, because we do not need to unref stores manually. This
>    bug was introduced by my recent fix on GtkTreeView, which initialize method was not sending
>    super.
>    * [spec2] avoid the traverse of roots when releasing a GtkTreeDataStore (Gtk does that)
>    * [spec2] list/table/tree migrated to use the new GtkTreeDataStore (lots of simplifications,
>    specially on GtkTreeTableAdapter)
>    * [NewTools-Playground] bug: doit from toolbar does not uses interactionMode
>    * [Spec2-doc] Add style section (reference) to SpApplication
>    * [NewTools-Playground] bug: "implementors" is not working. I couldn’t reproduce the problem.
>    Maybe is fixed now?
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> ### This week (starting 2020-06-08):
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> - Mostly cleanups and re-organisations on Spec2 (preparing v0.7 for Pharo9)
> - Preparing v0.1 of NewTools (also, to prepare an integration to Pharo9)
> - Building VM on Fedora linux
> - Testing Idle-VM on Windows
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