Rename Post model to Entry

Also:
- use "detail" consistently for DetailView (not details)
- rename home page tests
Merge branch 'master' into rename-post-to-entry
Merge branch 'rename-post-to-entry'

Conflicts:
	tutorials/01-getting-started.rst
	tutorials/02-models.rst
	tutorials/03-views.rst
	tutorials/05-forms.rst