Added additional documentation infomration to resolve DOC-824, DOC-820 adn DOC-779
Added clearer documentation regarding filters for users and groups - DOC-779; cleaned up a few copy and paste errors in the users, groups dita.
Fixing build bug caused by content mistake: moving filter ditaval from filters section to options section.
Editing for format errors that broke the build.
A couple small updates

* Use refs for versions in a couple places
* Update the equallogic install instructions
Updated upgrade docs

* We only support upgrades from 3.2.2
* Introduce new equallogic libs package
* No need to set block storage manager
* Added euca2ools upgrade page
* Added mention of load balancer in upgrade (install docs still needed)
Merge branch 'ldap-doc-improvement' of git://github.com/hspencer77/documentation