Added a new type of line chart: lineWithFocusChartMultiCoordinates
	modified:   GruntFile.js
	modified:   Makefile
	new file:   examples/lineWithFocusChartMultiCoordinates.html
	modified:   nv.d3.js
	modified:   nv.d3.min.js
	new file:   src/models/lineWithFocusChartMultiCoordinates.js