Release Name: 0.4.2

Notes:
== PROBLEMS/TODO

* Add support fills (area or background), grid lines, shape markers, range markers 
* Support shorthand colors and color names
* Make venn data specification friendlier

There are lots of missing features. Until they're implemented, you can directly specify
query parameters using the :extras key, e.g.,

  # provides a legend for each data set
  g = GChart.line(:data => [[1, 2], [3, 4]], :extras => { "chdl" => "First|Second"})


Changes:
== 0.4.2 (2008-01-09)

  * Encoding a flatlined chart doesn't asplode [Jack Danger Canty]