encryption 1.6.1 release

[jnweiger]

Reason

• #395 - Always return an int from Symfony Command execute method

We missed this one in the 1.6.0 release, although it was long before added to the top commit of the 1.6.0 release ticket.

[jnweiger]

https://github.com/owncloud/encryption/releases/download/v1.6.1-rc.1/encryption-1.6.1-rc.1.tar.gz
https://github.com/owncloud/encryption/releases/download/v1.6.1-rc.2/encryption-1.6.1-rc.2.tar.gz