Tasks that are in state `active` but haven't been 'touched' by a Worker
for 10 minutes or longer will transition to state `failed`.
In the future, it might be better to move the decision about which state
is suitable to the Task State Machine service, so that it can be smarter
and take the history of the task into account. Going to `soft-failed`
first might be a nice touch.
This helps to get things consistent on Windows and Linux. Otherwise a path
like `/some/path` is absolute on one platform but not on the other. This is
mostly for getting the unit tests in this package to work on Windows, but
using absolute paths also helps in clarity of error logging.
Flamenco Manager now has a "storage path" config option, which will be
used by Shaman if enabled. Now the `{jobs}` implicit variable will always
exist, its value depending on whether Shaman is enabled or not.
