A Sonar comprising of 2 graphs ( 1 showing live data and 1 showing last minute data ) done. This has been implemented as a special case using the same sonar library. Sample file sonar-d.html

Closes #4
Closes #5
Merge branch 'master' of github.com:IanMayo/d3sonar

Conflicts:
	sonar/js/d3.sonar.js