[Mezuro] Adding highcharts scripts.wq
[Mezuro] Added dummy highcharts graphic.
[Mezuro] Fixed grade history graph width.
[Mezuro] Multiple metric charts at once.
[Mezuro] Metric charts use real data to plot.
[Mezuro] Fixed project result chart title.
[Mezuro] Adding date info to charts.
Merge branch 'highcharts' into mezuro-dev