[fix bug 1002420] Optimize longest streak calculation.
[fix bug 1002420] Optimize longest streak calculation.

* Include only the users with a report in the last 24 hours, in the calculation.

chirilo/remo,abdullah2891/remo,akatsoulas/remo,tsmrachel/remo,Mte90/remo,chirilo/remo,Mte90/remo,mozilla/remo,flamingspaz/remo,akatsoulas/remo,flamingspaz/remo,abdullah2891/remo,chirilo/remo,tsmrachel/remo,tsmrachel/remo,mozilla/remo,Mte90/remo,mozilla/remo,tsmrachel/remo,johngian/remo,flamingspaz/remo,akatsoulas/remo,akatsoulas/remo,abdullah2891/remo,Mte90/remo,johngian/remo,mozilla/remo,flamingspaz/remo,johngian/remo,chirilo/remo,johngian/remo,abdullah2891/remo