Fix for DOC-461: added note that EMC now requires registration to view their documentation.
Merge branch '3.3.1-dev'
DOC-863: Deleting references to Xen.
DOC-863: Adding new doc change files for individual guides. Started updating content for changes going in to 3.4.0.
DOC-863: New index file for welcome page in HTML and updated ditamap.
Updating create instance wizard help for 3.4 UI updates.
Merge branch 'master' of git+ssh://git.eucalyptus-systems.com/documentation
Typo fix
DOC-945: Updating history files.
Merge branch 'master' of git.eucalyptus-systems.com:documentation
DOC-932: Updating release note structure and including some placeholders.
Deleting xen reference in system logs section.
DOC-1005: Taking out note.
Incorporating additional tech review comments.
Incorporating additional tech review comments.
Merge branch '3.3.1-dev'

* 3.3.1-dev:
  Incorporating additional tech review comments.
UI help updates.
Console help updates; added resume/suspend scaling activity help.
First draft of Hardening Guide
Updating version numbers for 3.4