accounts.md - no longer pass back name, redundant w/ add_on_type
spaces.md - add option to retrieve, update space add ons. Add ability to create space with template.
templates.md - added start_date, end_date and description
templates.md - consolidate dates to template_date_type and remove deprecated description.
Merge branch 'master' into rogie
Update instructions based on new Acct Mgmt UI, noted token lifespan,
and some other corrections