refactored feedlist_view to enable Bootstrap 3
Change the export UI code, use an other datetimepicker from github
removed allert messages, changed to modal form.
change table presentation to bootsrap grid
added some more checks on export parameters
Added translatability to the code

 On branch slider-module
 Changes to be committed:
	modified:   Lib/bootstrap-datetimepicker-0.0.11/js/bootstrap-datetimepicker.min.js
	modified:   Modules/feed/Views/feedlist_view.php
	modified:   Theme/theme.css
	modified:   Theme/theme.php