Css unification

[MatLala]

We need the most common css possible. So the class names an tags in d3 and springy need to be same. Important to have same tags with "a" tags for :

• links groups
• nodes groups
• labels The common css name will be style.css Goal is to remove graph-d3.css and graph-springy.css if possible

[MatLala]

Now :

• In d3 : each node is an "a" tag (as springy)
• In d3 : each link stay a "path" tag (line for springy)
• In d3 : each text label stay a "text" tag (as springy)
• an unique css for springy and d3 : graph-common.css