Add evaldontevil sandbox creation to Vagrant's install.sh
Merge pull request #34 from pythontutor/vagrant_evaldontevil

Add evaldontevil sandbox creation to Vagrant's install.sh
Add site statistics tab: number of user/submission on last week/month
Merge pull request #35 from pythontutor/statistics

Add site statistics tab: number of user/submission on last week/month