Update history.
Added signature for changeset 5e22b47ec5dc
Added tag v0.3.0 for changeset 3fa6e3a90e8e
Add an optional (disabled by default) timeout for the signal handling
wait_for_signals() method, for potential re-use in alternate loop
actions.
Just return true if a signal was handled in wait_for_signals(), or false
if a timeout occurred.
Bump the minor version, update history.
Added signature for changeset 855c7801eaea
Added tag v0.4.0 for changeset ccf6adfeb268
Remove the pinger example task
Update TODO list
Add direct dependency on loggability