moves the upload csv method to the app controller and divides it into 2
translate error messages in admin controller to Arabic
Merge branch 'C2_AmrARaouf_C1S20_Admin_populate_database_by_importing_csv' of https://github.com/MGhanem/smartsoft-13 into admin_theme
modify admin index view to use bootstrap tabs
remove unused app/views/admin/upload.html.erb file
removed admin/import_csv from routes
modify admin add word view
modify routes /admin/wordadd to /admin/addword and change button in addword form to pull-left