Dashboard: Instead of having job directory names be the UUID, it would be nice if the job directory names were the job id

[ericfranz]

The problem is that the job is staged prior to the job submission, and if we were going to do a mv to rename the staged directory to the job directory, there would be a small race condition (what if the job starts right after the submission completes and is trying to access a directory that does not exist). We could create symlinks though if the job itself referenced the original udid named directory.

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