Created submission info page.
Added rating history chart in the submission info page.
Clicking on submissions for the standings and my submissions pages will now redirect
you to the submission-info page of that submission.
Fixed a bug in the submission info page as the dates were not correct and the charts
bugged out.
Added date field on the round model.
When updating ratings we are using the date set on the round model instead of datetime.now
Temporarily disabled highcharts animation and tooltips as they were crashing chrome.