New upstream release including:
* Dropping entropy patch
* Remove default support for MD5 fingerprints
* Porting all the downstream patches and pam_ssh_agent_auth
to new sshbuf and sshkey API
* pam_ssh_agent_auth is no longer using MD5 fingerprints
* Rebase to latest upstream version
* Clean up older patches for pam_ssh_agent_auth
* Remove prefixes from upstream release so we can build it against current
openssh library
* Remove copied files and headers so we make sure we build against current openssh
Jakub Jelen