Make sure the owner is displayed as contact.

Before this bugfix the current user would be shown as the owner.
Add position field in to the apps model.

https://github.com/madewithbytes/us_ignite/issues/319
Render app position field in the forms.

https://github.com/madewithbytes/us_ignite/issues/319
Add piloted applications to the hub.
Add member applications to the hub map.

https://github.com/madewithbytes/us_ignite/issues/319
Make sure the owner is listed as a contact in the hub.
Avoid rendering contact when user is missing.
Update page details to pass the contact variable.
Reduce size of the blog post excerpt

https://github.com/madewithbytes/us_ignite/issues/303

Reduced to 21 words.
Removed unused default block in list_base.
Cosmetic: Updated code and wording of stage option.
Cosmetic: Removed non-used block in template.
Removed commented out sorting.
Add support to filter apps by completion stage.

https://github.com/madewithbytes/us_ignite/issues/318

The stages are listed as ``categories``.