CA-198282: "ciphersuites" option for xe
CA-198282: "ciphersuites" option for xe

If supplied, this is used to configure the Stunnel module which
passes it on as the "ciphers" configuration file option for the
stunnel binary (rather than using any of Stunnel's built-in
default ciphersuite sets).

Signed-off-by: Thomas Sanders <c547603d2dd860735c4f0c043b1348f5c48c02f8@citrix.com>

srowe/xen-api,thomassa/xen-api,euanh/xen-api,thomassa/xen-api,srowe/xen-api,jjd27/xen-api,srowe/xen-api,rafalmiel/xen-api,rafalmiel/xen-api,euanh/xen-api,Frezzle/xen-api,Frezzle/xen-api,thomassa/xen-api,jjd27/xen-api,Frezzle/xen-api,euanh/xen-api,thomassa/xen-api,srowe/xen-api,rafalmiel/xen-api,Frezzle/xen-api,rafalmiel/xen-api,thomassa/xen-api,srowe/xen-api,thomassa/xen-api,Frezzle/xen-api,euanh/xen-api,rafalmiel/xen-api,jjd27/xen-api,jjd27/xen-api,euanh/xen-api,jjd27/xen-api,rafalmiel/xen-api,jjd27/xen-api,euanh/xen-api