added extra config options for MAAS
Update howto.md
added items to the howto list
Update howto-privatecloud.md

Fix URLs used for the location of standard image metadata.
Merge pull request #108 from wallyworld/master

Update howto-privatecloud.md
Add offline documentation.
Reword intro.
Add offline config to navigation.
Add a warning about the charm payloads being offline.
Clarify installation instructions.
Fix link to Cloud Images in Config Vagrant section
Merge pull request #110 from rogeriopradoj/patch-1

Fix link to Cloud Images in Config Vagrant section
Merge pull request #109 from castrojo/offline-charms

Add offline documentation.
Update glossary.md

remove artefacts of HTML->md conversion
added 1.18.3 release notes
added 1.18.2 release notes
fix spelling typo
Merge pull request #111 from mikemccracken/patch-1

fix typo
Adding more information on the relation-ids command.
Merge pull request #113 from mbruzek/relation-ids

Adding more information on the relation-ids command.