Tweak the new analytics bar

Add media query to reduce the long texts' size and each box's padding.
Tweak the circular panel used to show how many seconds took you to
answer a question compared to the average.
Merge branch 'master' of https://github.com/joanrm20/maua
Style the Take a Tour button in the dashboard
Merge branch 'master' of https://github.com/joanrm20/maua

Conflicts:
	src/app/dashboard/dashboard.tpl.html
Delete the characters generated by the conflict

Add the ng-if to the div parent of the Take a Tour button.