Initial Release

update to LineUpJS 3.1.0 and first official release

see also https://github.com/datavisyn/lineupjs/releases/tag/v3.1.0

This release includes a new logic for the sorting and grouping handing (lineupjs/lineupjs#26). In addition, the side panel has been refactored to better handle sorting and grouping criteria via an explicit widget. Moreover, the side panel now supports multiple rankings using a tabbing approach (lineupjs/lineupjs#44)

new sorting / grouping logic

• clicking the shortcut toolbar icon will set the column as the only primary sorting or grouping criteria
• ctrl-click adds the column to the end of the sorting / column hierarchy
• a more detailed control is possible via the Sort By ... and Group By... dialogs in the advanced menu of each column
• the sorting and grouping hierarchy can also be manipulated using the sorting and grouping widget

additional changes:

• the order within the side panel now reflects the order of columns
• as soon as one sorting criteria the sorting hierarchy widget is shown (can be disabled using the hierarchyIndicator options (default: true)
• as soon as two or multiple rankings exist a tabbing approach is used to let the user switch in the side panel between the different rankings