Fix wtf on cmdfile reload.

- change CommandScheduler to propogate up config exceptions.
- fix deadlocked CommandSchedulerTest test when running from
Eclipse when a global config hasn't been initialized.
- add displayed log messages on each significant step of command file
reload

Change-Id: Ie0a6a5d03989388a5a78f8ca3d22be8e097a2bd3
7 files changed