Calculate the sum of statuses for each user

Hi Dan,

Please review this little patch that sum up the number of each status occurrence for each user, and display it at the bottom of the attendance table.

Nadav :-)
Calculate the sum of statuses for all users in each session

Hi Dan,

Here is another patch the calculates the sum of statuses for all users in each session.

Please review and see if you can accept.

Nadav :-)
Merge pull request #27 from nadavkav/patch-3

Calculate the sum of statuses for each user
Merge pull request #28 from nadavkav/patch-4

Calculate the sum of statuses for all users in each session