views: Redirect when only one TODO exists

views: Redirect when only one TODO exists

At the moment, the page listing all TODOs will display like the page
detailing a single TODO. This is misleading. Instead, use the same
approach as the index page, where the user is automatically redirected
to the appropriate project's page when only one project exists.

Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>