Enable unit testing

Adds the necessary scaffolding to run unit tests in this project.

Actual tests will be added in later commits.

Change-Id: Ia348dda6b482ca269dceace09f6ac3b24bbd6b32
Add unit tests for os-svc-daemon

Adds a set of unit tests for os-svc-daemon to verify the output
of running it with various options.  Includes a base test class
with some convenience functions for testing scripts.

Change-Id: Id54291686d39ab1b9f0ce4848a2fcf3c18a9ea18
reset-db restarts mysql only when a change is made

Reset-db should not restart the mysql service unless it needs to.

Change-Id: I102dedb00d589661b57768e8966995bda2e22ed8
Merge "Enable unit testing"
Merge "Add unit tests for os-svc-daemon"
Merge "reset-db restarts mysql only when a change is made"