Install Guide review comments from Laurent

git-svn-id: https://svn.forgerock.org/openidm/trunk@4614 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Add OPENIDM-2636 to list of known issues

git-svn-id: https://svn.forgerock.org/openidm/trunk@4616 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Rename Azure -> Azure AD in the corresponding sample

git-svn-id: https://svn.forgerock.org/openidm/trunk@4618 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Move section of supported auth modules, to just after the section introducing authentication, request by Nicolas in HipChat, 3 Dec

git-svn-id: https://svn.forgerock.org/openidm/trunk@4619 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Update supported platforms to just CentOS Linux and add "tested on" for the others.

git-svn-id: https://svn.forgerock.org/openidm/trunk@4622 d98387aa-ee2c-4292-a9e6-504d2a719fd3
CR-5553 - OPENIDM-2627 - Connectors with underscores in the name not working in Admin UI

git-svn-id: https://svn.forgerock.org/openidm/trunk@4624 d98387aa-ee2c-4292-a9e6-504d2a719fd3
OPENIDM-2633 CR-5551 Fix commentary on script arguments

git-svn-id: https://svn.forgerock.org/openidm/trunk@4628 d98387aa-ee2c-4292-a9e6-504d2a719fd3
OPENIDM-2631 CR-5548 Convert sample 3's README to markdown format

git-svn-id: https://svn.forgerock.org/openidm/trunk@4629 d98387aa-ee2c-4292-a9e6-504d2a719fd3