ion-3ds-20070203

Release notes:

  * There's been changes in padding/spacing usage in styles. Frames
    now surround stuff inside borders not with `spacing` pixels, but
    with `padding_pixels`. Spacing is only used to space things within
    the borders (all the tabs and the client window from each other).
    Consequently, custom styles may need to be updated to reflect this,
    by increasing the padding, possibly also altering/removing colour
    (to set it to background colour).

  * The use of drawing engine attributes has also changed, and strict
    ordering of them in the styles is no longer necessary. Additionally,
    much more attributes are supported, including the name of every
    statusbar meter.

  * Xinerama support is gone. In addition to being problematic as such,
    it had bit-rotted, and I will not waste time fixing it.

  * `ioncore.set` no longer supports the `default_ws_params parameter
    for configuring the default layout. It is replaced by
    `ioncore.deflayout("default", { ... })`, which allows configuring
    other layouts as well, known by `mod_query.query_workspace` (F9).
    Some default layouts are configured in `cfg_layout.lua`.

  * It is now possible to automatically create new workspaces for
    windows with the `new_group` winprop.

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Tuomo