GUI-263: Updated per Kamal Gill tech review.
DOC-1198: added euca-import-instance topic
Merge branch 'master' of git.eucalyptus-systems.com:documentation

# By Thanhnguyet Vo
# Via Thanhnguyet Vo
* 'master' of git.eucalyptus-systems.com:documentation:
  GUI-263: Updated per Kamal Gill tech review.
DOC-1198: euca2ools guide stragglers