Spring Cloud Data Flow should set spring.cloud.task.name with the label or registered name

[corneil]

Problem description:
When a task application is launched while another task with the same internal value for spring.cloud.task.name an error occurs where the application reports that it is already running.

Solution description:
By setting the property spring.cloud.task.name to the registered name or the label name or the full ctr name this can be avoided.

Added Context:
We should consider if it is desired for the exact same application to be running at the same time in which case we should check if one is running and prompt the user for a unique name or in the case of ctr generate a unique name buy appending a time stamp to the value we set on spring.cloud.task.name

[cppwfs]

Interesting case. For the case when using the same application in the DSL, each app in the definition will get a unique label. i.e. T1: timestamp && T2:timestamp