TLOG — Clarify specification text in section 3.4 Log Generated Events

Summary: The specification text is unclear and should make a note in
section "3.4 Log Generated Events" to explain that the manner
in which logs send log generated events to their corresponding
log factories is an implementation detail.

The idea is that applications (log/LogFactory clients) are only consumers
of log emitted events, they do not send events to the factory. Therefore, the
LogFactory does not need to expose the SupplierAdmin interface. How the log
actually forwards events to the factory is left up to the implementation -
use a SupplierAdmin object, or other means.

resolved, see revised text below