Fix #40 - replace complicated timer based implementation with ticker based
Merge pull request #41 from nabeken/impl-ticker-based

Fix #40 - replace complicated timer based implementation with ticker based
Move testing stuff to testutil

testutil will be used by delayd-bench
Merge pull request #42 from nabeken/add-testutil

Move testing stuff to testutil
Let delayd quiet
cmd: Add delayd-bench