Added context to VMDK driver topic

Added a new section that provides context and background for the
VMDK driver, describing how the VMDK creates a VMDK file, how
that file creation is completed only when it is attached to a
volume.

Change-Id: I6527edab609e6cbaf556a93f5dec4237ab24f1f5
backport: none
Closes-Bug: #1275894
Advise to always use OBS repo

The OBS repo should be added in any case, update the description.

Change-Id: I422a6a759b4951328238425e83ecfda05c17e987
Closes-Bug: #1277078
Merge "Added context to VMDK driver topic"
Add more entries to glossary of Install and Security Guides

Install Guide: Add some more glossterm entries.

Security Guide: Add glossterm entries for SPICE, VNC

Add new entries "OpenStack", "role", "service", and "SPICE" to the glossary itself.

Change-Id: Ibc93970c544012db45e47c5467145675dcef5149
Section_cli_nova_secgroups.xml change

“any IP address to access to a web server” corrected
instance - plural should be used

Change-Id: I6b22fd9377979599b149dce699e3af0a3aacc722
added additional steps - section_cli-openrc.xml

Added - Click on the API Access tab

Change-Id: I9ca95c150c096b9284b8c225597d9a279ccd2e67
Further glossary project edits

Changes for neutron and swift to use official names.

Also remove the entry "device" that is not really usefull.

Change-Id: I561ed8826340c9c82e2ce477a372c49e5c33db81
Updates ML2 content in Networking intro

Rewrote introductory ML2 text for clarity. Made special mention of
the use case where ML2 will offer particular benefit. Updated the
note to emphasize that the deprecated plug-ins have been ported to
ML2.

Change-Id: Ie9273c73b265d6afe9a3603348c59806c1a9561c
Partial-Bug: #1217503
Merge "Section_cli_nova_secgroups.xml change"
Merge "Updates ML2 content in Networking intro"
Merge "Further glossary project edits"
Merge "Advise to always use OBS repo"
Merge "added additional steps - section_cli-openrc.xml"