Add stats

[casassg]

Users

• [x] Number of hackers, directors, organizers, volunteers
• [ ] Server emails counts

Applications

• [x] Timeline of number of applications submitted + users signed up
• [x] Genre pie
• [x] Bar chart by status
• [x] Dietary restrictions numbers
• [x] Tshirt sizes numbers
• [x] Origin cities by numbers
• [x] Bar chart of universities by percentage/numbers
• [x] Bar chart of graduation year
• [x] Bar chart of degree
• [x] First timer pie
• [x] Lenny faces distict and top 5
• [x] Resume count

Reimbursement

• [x] People that need reimbursement vs people that have reimbursement
• [x] Estimated reimbursement amount to be reviewed
• [x] Reimbursement amount sent
• [x] Reimbursement amount confirmed

Checkin

• [x] Timeline by hours
• [x] Attrition rate gauge chart (see how many attendees from total confirmed)

[casassg]

Add preview version for some application data

[casassg]

Added a few for reimbursements as well