Merge pull request #18 from manojgn/feature-dev

Bucketization reorganization
Initial checkin for the cross filter in the chart settings
Merge pull request #19 from vishnuvv/chartOptions

Initial checkin for the cross filter in the chart settings
Bucketization changes
- Added cookies support for settings
- Decoupled zoomIn/Out functions in chart-utils
- Fixed some issues in manageCrossFilters like updateCrossFilter

Change-Id: I36a0d76ee0d98413ed532212aae55adeb28a8edb