Changes for Ruby 2.2.2

[Belinda Frick]

Server
Timers for Daily Data graphs now recorded correctly
Times for Agent Summary Report now recorded correctly - Ruby 2.2 interfaces
would cause times to be wrong

Supervisor
Fixed bug in detailed agent report where durations of 59 minutes and
more than 31 seconds would show as 1 minute instead of 1 hour
Fixed bug in summary agent report where times would show incorrectly
Agent summary report times made more accurate