docs: fix a typo.
docs: Update index page - make it more clear that CDN functionality is available
through the object storage API.
docs: add links to the committer guide to the index page.
docs: Move upgrade notes to Sphinx documentation and update it.
docs: Add changelog chapter.
docs: Link to changelog and upgrade notes from the index page.
Issue LIBCLOUD-335: Add IAM Profile on node creation for ec2 based providers.

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
LIBCLOUD-335: EC2 IAM Profile are refactored for py2~3 and tested

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
pep8.
Update CHANGES.
Update changes, reference the right jira ticket.
added 'progress' to 'extra' dict of compute node