BucketAnalysis num_buckets naming difference between SDK and web

[qjiang002]

In the most recent SDK version, the name of BucketAnalysis bucket number is num_buckets.

"custom_analyses": [
      {
        "cls_name": "BucketAnalysis",
        "description": "BucketAnalysis on verb",
        "level": "example",
        "feature": "verb",
        "num_buckets": 15,
        "method": "discrete"
      }
]

However, the SDK used by the web is explainaboard == 0.11.2 whose bucket number name is number. With the wrong name, the bucket number is default to 4. This problem should be resolved when bumping up the SDK version next time.

"custom_analyses": [
      {
        "cls_name": "BucketAnalysis",
        "description": "BucketAnalysis on verb",
        "level": "example",
        "feature": "verb",
        "number": 15,
        "method": "discrete"
      }
]