extract method to name threads using current thread name as a prefix
ExertionDispatcher: remove unused code
ExertDispatcher: don't implement Exec
ServiceProvider: replace 'this instanceof' with polymorphism
remove redundant code
fix misleading method name
fix spacer if called as jobber;
remove unused ComplexExertion
remove exception on empty job
refactor dispatchers, WiP
Dispatchers: remove notifyExertionExecution, QA
Dispatchers: simplify
ServiceExerter: migrate to slf4j
[pom] add manifest entries
Accessor: unused import
WhoIsItBean2: migrate to slf4j
fix handling of master exertion
ProviderDelegate: tune thread naming
simplify Space dispatchers
[pom] configure logging for surefire
simplify catalog dispatchers, WiP
fix catalog dispatchers