modified Gemfile.lock
update gem file add paper clip and updata show partner
uploading excel file
implement import database to create file upload.
create import method after save for import csv file to item database.
create table to show item created to import csv.
refactor items to partner
create routes for items under partner.
Implement update items.
Implement Edit action for items.
fix help pages.
Merge branch 'master' into james-branch
update seed.
add booking number on show item.
add booking on items index.
add find or create by booking numbers on import csv.