Struts 2 jQuery DataTables plugin

[flofourcade]

Using struts2-jquery-grid-plugin as a starting point, here's a new plugin adding support for the great DataTables plugin.
What is done ?

• added a <sjdt:datatables /> tag.
• added support for all officials datatables plugins, except Editor, which is released under a commercial license.
• added internationalization support, and corrected a bug in Head.java, where the first locale of the arrays could never be choosen (wrong indice test > 0, should be > -1).
• added support for three theme : default (not use the jquery ui styles), jqueryui and bootstrap 3. Other theme are supported by DataTables (foundation, bootstrap 4, but didn't include them for now)
• binding between DataTable's core and plugins events into Topic system.
• binding between some core API methods and Topic system (redraw, reload, order,search,...)
• support both Datatables processing modes : client side (for dataset < 10 000 rows) and serverSide.
• added java classes to handle datatatables server side protocol (ServerSideProcessingRequest/Response)
• support JS, AJAX, and DOM datasource
• support JS and HTML5 data-* config options
• updated struts2-jquery-plugin-showcase to give some example of use.

What can be added / improved ?

• Create a custom editor plugin using jQuery and bootstrap
• Add helper functions for grouping, summarizing
• Add support for draggable,sortable, ... jquery interaction
• Saw samples on the net where nested datatables are used
• Investigate a strange bug when using official minified version of core DataTables.js with plugins like responsive in some browsers (FireFox) : big performance hit !!!
  Had to disable the use of minified core DataTable js. Maybe try to use a custom minified version
  EDIT : occurs only in FireFox with firebug opened
• ...

Hope you'll like it !