Merge Former Integration.rst
Align with Readme demo file
Add link to designate installation
Add link to the wiki for the component lists
Add information about OpenStack providers
Change-Id: I932b1b4d186e19f85308c93dc8421d74f5353f8c
ISSUE-ID: DOC-153 Signed-off-by: Eric Debeau <eric.debeau@orange.com>