As the size of the variation increases, the resulting colors approach
white and black. To avoid this we now reset the variation when it gets
too large. This results in repeated colors, but that's much better than
a list full of whites and blacks.

Added a legend 'sorted' option that allows sorting of legend entries
independent of series order.  It accepts either null/false, true,
'ascending', 'descending' or a comparator function.

Throw error when flot.time plugin is missing.

- The faster toFixed alternative now returns a string, as tickFormatter
is expected to do

We changed the === to == and removed the typeof operator.  We also changed the tabs to spaces.

Switched to a much a faster default tickFormatter.

Fixes issues 709 on google code.

- toFixed() is sloooow
http://jsperf.com/tofixed-vs-factor

Better date/time formatting

Fix minTickSize for year units

Timezone support, time mode pluginification

time zones.

Added a 'right' option for bar alignment.

Convert README to markdown format

Prevent single slice pie charts on example page

Throw IE- and Safari-friendly error upon finding invalid dimensions.