Remove unnecessary comments for instance rebuild tests.

Just remove the unnecessary comments which may be confused.

Change-Id: I86df10a4ce1fc88e7dd47764e4ea0cdeababd389
Disable ssl layer compression for glance requests.

This may improve data throughput, eg when high network bandwidth is
available and you are using already compressed image formats such as
qcow2 .

Addresses bug 1189887.

Change-Id: Iacc42d8e0cab218258c3029d5395e02fddb75197
Create key manager interface

This interface provides a thin wrapper around an underlying key management
implementation such as Barbican or a KMIP server. The key manager interface is
used by the volume encryption code to retrieve keys for volumes.

Implements: blueprint encrypt-cinder-volumes
Change-Id: I9b0dcb7d648ee6809185c71ba457c8a8a6c90d50
SecurityImpact
xenapi: no glance upload retry on 401 error

It is possible for a token to expire during a very long image upload.
If this happens, there is little point in retrying the upload, as it
is most likely to fail again for the same reason.

Fixes bug 1199454

Change-Id: Id699135a8ec4c603671b16f0127d0b2cd2a55855
Merge "Create key manager interface"
Merge "Remove unnecessary comments for instance rebuild tests."
Merge "xenapi: no glance upload retry on 401 error"
Merge "Disable ssl layer compression for glance requests."
Merge remote-tracking branch 'm_src_repo/citrix-fixes' into build-temp