DOC-1248: added some glossary terms to address Marten's issue #4
DOC-1248: addresses Marten's issue #1
DOC-1248: address *some* of Marten’s concerns for #9
DOC-1248: address Marten's need for a glossary #4
DOC-1248: address Marten’s concerns #2 and #3
DOC-1248: added term key ref to VM part of instances overview to avoid duplication.
should have been IGNORED
Merge branch 'master' of git.eucalyptus-systems.com:documentation