CHANGES IN VERSION 1.0
----------------------------

    o First submission of wheatmap package.
  
CHANGES IN VERSION 2.0
----------------------------

    o added ticklabel use data feature and label repel simulation
    o bug fix to bbox documentation
    o fix to na.color in continuous color
    o removed CMPar() as default argument so importing package won't complain missing function

CHANGES IN VERSION 0.2.4
----------------------------

    o sibling-aware auto-margin: a child placed via RightOf/LeftOf/TopOf/
      Beneath of a predecessor whose outward labels overflow its body
      (e.g. a WLegendV next to a label.use.data=TRUE WColorBarV) is now
      shifted outward by the predecessor's label extent at draw time, so
      the predecessor's labels no longer sit underneath the next sibling.
      Implemented as a fixed-point iteration with the outer gtable
      margins (margins shrink the center cell, which inflates the NPC
      overhang, which feeds back into the shift).
    o TopOf/Beneath/LeftOf/RightOf now tag the resolved dm with
      'placement' and 'placed.relative.to' attributes that record the
      placement intent for the draw-time relayout pass.

CHANGES IN VERSION 0.2.3
----------------------------

    o stand-alone print() now wraps the figure in a gtable so that
      outward-facing tick / colorbar / in-situ data labels are auto-sized
      into the page margins instead of clipping at the device edge. The
      WCustomize(mar.*) settings are honored as a minimum floor (auto
      values dominate when larger), so existing call sites with explicit
      mar.right=... continue to work without change. gtable is now a
      hard dependency. See inst/examples/auto_margin.R.
    o TopOf / Beneath / LeftOf / RightOf now tag the returned generator
      with a 'placement' attribute (north / south / west / east).
      WColorBarV / WColorBarH read this to default the in-situ
      (label.use.data) tick-label direction outward, so a horizontal
      colorbar placed via TopOf("main") puts its labels above the bar
      (rather than down into the heatmap). Explicit xticklabel.side /
      yticklabel.side overrides the inference.
    o fixed a blank-leading-page bug when rendering to pdf(): an early
      convertUnit(stringWidth(...)) inside ScaleGroup implicitly opened
      page 1, after which grid.newpage() advanced to page 2. The auto-
      margin path measures only after grid.newpage(); the ly() path was
      reordered to match.
