MFH: r461445

dns/dnscrypt-proxy: Update MASTER_SITES and WWW

Domain dnscrypt.org is gone. [1]

1 - https://github.com/jedisct1/dnscrypt-proxy/issues/89

Reported by: tj@mrsk.me (via email)
Approved by: portmgr (blanket)

Approved by: ports-secteam (delphij)