Bucketization changes:
1. Reorganized the code making  bucketization params configurable from chart options
2. Max scatter level and No. of buckets is now configurable
3. Bucktization reset now working (css modification pending)

Change-Id: I8384b1598e48faca6741466a5e39f3f54258441a
Merge pull request #14 from manojgn/feature-dev

Bucketization changes:
Merge pull request #15 from sbavanasi/feat-dev

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1369869 - Add comma separated search to the grid

Change-Id: I2fb5ea04b5912da85b99e5cf1cc45b37ac2746e7