SFTP plugin to Ghost Commander

8/12/2019

Private keys are no longer to be read from /sdcard/.GhostCommander/keys
They have to be added to the app by the new Keys Manager.
(tap and hold on the SFTP item in the app's home: list then choose Settings->Keys manager)
On the first run all they will be automatically copied from the old location to the internal one.
If a private key has an invalid format, that shown in the key's description.
The user can now choose the site's fingerprint hash type (MD5 or SHA256) to display.