Alistair Coles f36bc513c5 Add encryption overview doc
Include a note in container-sync docs pointing to specific
configuration needed to be compatible with encryption.

Also remove the sample encryption root secret from
proxy-server.conf-sample and in-process test setup. Remove encryption
middleware from the default proxy pipeline.

Change-Id: Ibceac485813f3ac819a53e644995749735592a55
2016-06-30 23:31:20 -07:00
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