finished add_contact_to_pipeline TXS

add comments to add_contact_to_pipeline txs

create_box txs finished

get_box_by_contact_and_pipeline_id txs finished

get_contacts_by_pipeline_id txs finished

finished transaction scripts for box and contact

get_contact_box TXS

update get_contact_box, contact controller and box controller

removing migrations WARNING

removing migrations WARNING

update_box_history txs

update_contact_box txs