Fix for PixelDCSCondStateAlg (TriggerMT)
There was a bug in the PixelDCSCondStateAlg algorithm where both objects were not checked for expiration. This was causing a stall in some events in some TriggerMT prototypes.
The algorithm is changed to reentrant (I see no reason why it shouldn't be)
Other minor optimizations
The cache-creator algs also have their warnings escalated to errors (this is by request to draw more attention to it).
cc @tbold