New: Result item zoom option, that generates a full-browser overlay with item details

Filtering Fix: Browser was not updated if the new result set had same number of items (but result set could have changed)

Panel size adjustment is now part of result display DOM
 -> Easier to manage

Simplifications for facet DOM / styling

Updated the style of combobox selection for multiple facet sort options
Minor demo updates
Histograms now support 1-line quantile summary, which helps in understanding statistical distribution of the interval data.
Simplifications for filtering backend
First iteration of the more flexible filtering system
Improvements for new filtering model.
Fixing major OR selection problem.
Fixes for multi-level filtering and histograms.
moved flag images to subfolder
Updated demos.
Minor fix for hierarchical facet filtering and filtering state display
New demos - Based on Microsoft Pivot XML files.
New demo image files.