added comment to min and max calculations
removed delete conflicts
deleted series tests in old location
added doc folder delete task to build, to ensure docs are tidied up
updated commenting to fix documentation
added comments to other series and chart
updated comments
fixed color bug in column series
fixed color default in rowseries
Merge pull request #50 from Stavrakakis/master

Axis refactor
Merge branch 'upstream'

Brings in the latest changes from upstream/master.
Most of this involved moving files into folders, and adding a "clean"
step to grunt to remove existing docs before building.

Conflicts:
	Gruntfile.js
	dist/insight.js
	dist/insight.min.js
	doc/Axis.js.html
	doc/ColumnSeries.js.html
	doc/Dashboard.js.html
	doc/Grouping.js.html
	doc/InsightCharts.Utils.js.html
	doc/RowSeries.js.html
	doc/Series.js.html
	doc/index.html
	doc/insight_findMax.html
	doc/insight_tickRotation.html
	doc/module-InsightUtils.html