L276 : Fix JSDOC on how _checkServiccePresence behaves (#181)
L276 : Fix JSDOC on how _checkServiccePresence behaves (#181)

Just fix up the documentation a bit to reflect to current new reality of the bahvior.  Notable the optional parameter and that it can throw a reject() upon a Redis error.
cjus/fwsp-hydra,flywheelsports/hydra,cjus/hydra,flywheelsports/fwsp-hydra