Paging navigation buttons disabled when server-side processing, and jquery UI are used

version: 1.9.4
line: 11713
function:

 "fnUpdate": function ( oSettings, fnCallbackDraw ) 

line contents:

 var iPages = Math.ceil((oSettings.fnRecordsDisplay()) / oSettings._iDisplayLength); 

The number of pages is counted using fnRecordsDisplay(), which returns display records count instead of all records count. This can be fixed by replacing this call with fnRecordsTotal():

 var iPages = Math.ceil((oSettings.fnRecordsTotal()) / oSettings._iDisplayLength); 

This wrong function call leads to the paging navigation buttons being disabled, as dataTables thinks total record count is equal to display record count.