dont fail on unknown workload status message (#194)
dont fail on unknown workload status message (#194)

Some of the charms still do not use the status-set functionality from
latest juju. This accounts for that and just returns a generic string.

Signed-off-by: Adam Stokes <0a364f4bf549cc82d725fa7fd7ed34404be64079@ubuntu.com>
conjure-up/conjure-up,Ubuntu-Solutions-Engineering/conjure,Ubuntu-Solutions-Engineering/conjure,ubuntu/conjure-up,battlemidget/conjure-up,battlemidget/conjure-up,ubuntu/conjure-up,conjure-up/conjure-up