Update fnAddTr.js - Fix - Showing invisible columns
Update fnAddTr.js - Fix - Showing invisible columns

Showing not visible columns and returning the result of fnAddData, also fixes the problem described at https://github.com/DataTables/Plugins/pull/24
husnixs/Plugins,shamim8888/Plugins,prate3k/Plugins-1,cbondo/Plugins,KRQW/Plugins,shamim8888/Plugins,eveoh/Plugins,radlr/Plugins,prate3k/Plugins-1,SGCreations/Plugins,etd-framework/datatables-plugins,cbondo/Plugins,radlr/Plugins,NomadeLampe/Plugins,ran-guin/Plugins,SGCreations/Plugins,NomadeLampe/Plugins,etd-framework/datatables-plugins,eveoh/Plugins,ashishraikar/Plugins,husnixs/Plugins,cbondo/Plugins,shamim8888/Plugins,SGCreations/Plugins,modulexcite/Plugins,ashishraikar/Plugins,etd-framework/datatables-plugins,ran-guin/Plugins,modulexcite/Plugins,modulexcite/Plugins,NomadeLampe/Plugins,afelicioni/DataTables-Plugins,KRQW/Plugins,afelicioni/DataTables-Plugins,KRQW/Plugins,eveoh/Plugins,afelicioni/DataTables-Plugins,prate3k/Plugins-1,ran-guin/Plugins,husnixs/Plugins,radlr/Plugins,ashishraikar/Plugins