cosmetics to UI

Working on pulling in the log information into the Console screen
so some of the commandrunner code has been removed for the time being
until i can get something put together.

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
make machine_id optional in add_unit

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
add async decorator

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>