Cleanup of pom.xml

This patch works thanks to a fix in clouddocs-maven-plugin 1.14.

For Install and Config Guide:
* Remove targetDirectory variable, the default is fine
* Properly set webhelpDirname
* Remove cleanup section that are not needed anymore due to the above
  changes

Change-Id: I68ba45af7e870f888b2a39c5526b71802e1ebab4
Minor edits for the Config Ref Guide.

Minor edits (found in the last release), including link and case correction, and service-name updates.

Change-Id: I5410cf4b214800f9be433a513a320d69bc303208
Partial-Bug: #1121866
fix typo in OpenStack Security Guide.

Change-Id: If896899f1a028f271d12ae08a772a0f7bf2a6292
Closes-Bug: #1288030
Merge "Cleanup of pom.xml"
Merge "fix typo in OpenStack Security Guide."
Merge "Minor edits for the Config Ref Guide."