Add File class implementing method readlines.
Implement Template class. Handle dependencies with Maven.
Wrap Apache contentEquals to be called with abspaths. USe it to add a
test auto to class Template.
Able to export a standalone html file displaying a plot using underlying
D3.js techno.
Fix HTML generation when using several data series.
Additionnal tests for lineChart.
New chart : scatter chart.

Add enum to ease genericity due to different charts.
Add new template.
Minor refactoring : NVD3 becomes NVD3Chart.
CLEAN Remove various warnings.
IMPROVE Add possibility to specify one symbol shape and size for a whole serie or an array of symbol shape and size + adding test.