message: fix for validation error in ADLA
  Remove minimum and add an explanation.
diff: },
  "degreeOfParallelism": {
  "type": "integer",
  - "minimum": 1,
  "default": 1,
  "format": "int32",
  - "description": "the degree of parallelism used for this job. This must be greater than 0."
  + "description": "the degree of parallelism used for this job. This must be greater than 0, if set to less than 0 it will default to 1."
  },
  "priority": {
  "type": "integer",
  