Adding opacity to the tooltip border-top/bottom highlight.
Changed core.js so that nv.utils checks for existing utils object.
Updated stacked area chart so that when in 'expanded' mode, the tooltip shows the percentage instead of raw value.
added bower.json to project
updated bower.json to ignore unncessary folders
another update to bower.json
reverted last change
stackedAreaChart: Added a new stack offset mode, called 'stack_percent'. It behaves like 'expanded' mode, except the chart doesn't rescale to 100% when removing a series.
Merge branch 'development' of https://github.com/novus/nvd3 into development
stackedArea: renamed dataRaw
Updating to version 1.1.13
Issue #287. Fixed JSON format for bower.json.
Updated bower.json to include nv.d3.css
Merge branch 'upstream-development'

Conflicts:
	nv.d3.js
	nv.d3.min.js
	src/models/stackedAreaChart.js