CAS-1451: Align ticket cleaner & logout mgmr's SLO

https://issues.jasig.org/browse/CAS-1451
Yes it. Marching towards a minor 4.1 release, the strategy dictates:

> MINOR - an evolutionary incremental improvement that includes all PATCH release improvements along with fixes and enhancements that could not easily be accommodated without breaking backward compatibility or changing default behavior. Adopters can expect general improvements that require moderate changes in APIs, integration points, default behavior, and general configuration. 

Obviously, the goal is not intentionally break APIs but sometimes, as it might be with this pull, the change just warrants it.