Delete updateMetaAndTitle()

The footer only needs to be adjusted on resize events; otherwise, it's
static.
Rename setYAxes(), setXAxis() to drawYAxes(), drawXAxis()
Replace references to g.seriesContainer with a local variable
Cache xAxis and yAxis values in drawSeries()
Construct transform strings in helper function
Cache columnXandHeight in drawSeries for better readability
Cache the functions for determining fill color in drawSeries()
Minor code format updates
Refactor setYScales slightly, add new tests for multi-axis scenarios

Test setYScales more thoroughly in multi-axis scenarios, and
consolidate looping structure to loop over the number of axii rather
than the number of series.