Update screenshots on /doc/encryption_and_privacy/gpgapplet/public-key_cryptography/
Feature Branch: doc/wheezy
Parent Task: #6980 (closed)
Original created by @sajolida on 7203 (Redmine)
Feature Branch: doc/wheezy
Parent Task: #6980 (closed)
Original created by @sajolida on 7203 (Redmine)