* Added 'authoritarian' mode, which allows you permit/deny each and every command
that will be issued to a remote device. Designed for testing new change scripts.
* Added a 'command_timeout' parameter to Command Provisioners, so you can override
the default command timeout of 300 seconds by setting an attribute in the config
file
* Added proper handling of the 'onfail: continue' idea. You can now specify that
if a change fails, and it is a pre-requisite for some other change, processing
will continue despite the failure.
* Added the onfail: retry feature. If a change fails, you can specify that it should
be retried. You can also set a max number of retries. The default is 3.