Update requirements.txt

- Delete pycoinbase
Models Update lib Cups Delete

 -lib Cups Delete
New Translations

-Last of all
 JK-31 Translate home-page
 -added trans blocks
 JK-31 Translate new trans
 -base : fix
 -ticket pool
 -login
 -forgot pass
 -ticket detail
 -add trans
 JK-37 Cargo_API
 -added cargo_api
 -added new lib in requirements.txt
 JK-37 Cargo_API JK-28 Public Profile
 -added cargo_api example
 -added public profile template
 -added views
 -added url
JK-29 Mailgun Implementasyonu
  - added send_message function
  - added get_unsubscribes function
  - added unsubscribe function