Fixes Issue #109 - Prototype.js breaks StackedAreaChart

It appears the specification of the sizeDomain as a single element
array causes d3.js to use the wrong interpolatin function internally.
Issue #109: minifying pull request
changes to linePlusBar and linePlusBarWithFocus
Merge branch 'development' of https://github.com/novus/nvd3 into development
Merge branch 'master' of https://github.com/novus/nvd3 into development

Conflicts:
	nv.d3.min.js
ran make on merge with master