Histogram - Header now reflects the categorical facet design: When it appears under another facet, it includes parent facet name and arrows..
Adding papaparse to keshif dependencies (to be used to load csv files)
* CSV file loader updates, now using PapaParser, which is much better for parsing csv files with different configurations.
* Update: Data loaded through CSV is now indexes using column names, not array indices!

* Baseball and tablet demos are updated to reflect new changes in data structure

* Histogram now support Javascript Date type, and uses d3 date scale accordingly.

* Support for putting facets on the bottom. Great for inserting wide histograms (time/numeric).

* Fix: When interval scale is log-based, the interval handle-bars are now correctly mapping to the log-scale instead of linear-scale.

* Improved: kshf.Item variable naming / documentation

* Design: Result list display border is updated, the info button fits better visually to the rounded edges.

* Improved: If facet is collapsed, result preview is not updated