Fixed formatting bug in tableview
Fixed hang changing to table view with no facets.

When a collection had no facets defined and the view
was changed to the table view, htmlpivotviewer would hang.
Added comment about PivotViewer options.
Fixed bug when ViewerState view set to graph view.

Tile positions were not correct for the graph view.
Added links to download a built version.
Improved handling of datetime data

Datetime data is no longer treated as a string.  It is
now possible to filter based on time periods rather
than matching an exact date time.
Needed to declare the _datetimeFacets array
Added handling of '(no info)' datetime values
Minor change to datetime (no info) values
Keep filter options in selected facet
Added filtering using a custom date range
Added styling for the datetime picker
Fixed typo
Merge branch 'feature/date_handling' into develop
Added new entity link and facet value options.

The Entity Link Style and Facet Value Style dropdowns
on the PivotEdit page now include description and
sponger options.
Merge branch 'develop' of devhub.openlinksw.com:/opensource/html5pivotviewer into develop
Fixed a couple of bugs in the datetime handling
Merge branch 'develop' of devhub.openlinksw.com:/opensource/html5pivotviewer into develop
Added dropdowns for year and month to datepicker
Better handling of namspaces when loading collections.