[DEV-1957] Minor copy changes on feedback form.
[DEV-1957] Add feedback link to header, minor copy changes.
Merge pull request #35 from roverdotcom/DEV-1957

[DEV-1957] Touch up 'feedback' form, add link to header.
[DEV-1965] Change message ForeignKey from auth User to AskbotUser.
[DEV-1965] Add migration for ForeignKey change.
[DEV-1965] Fix migration script.
[DEV-1965] Fix RelatedObjectSimulator to point at AskbotUser.
[DEV-1965] Remove fake 'message_set' in favor of real one.
[DEV-1965] Remove comment.
[DEV-1956] Disable RSS feed by default.
[DEV-1977] Remove urlpatterns for API.
[DEV-1981] Implement bare AskbotUserAdmin class.
[DEV-1981] Rename fake field methods, add readonly_fields.
[DEV-1981] Re-enable last_seen.
Merge pull request #38 from roverdotcom/DEV-1977

[DEV-1977] Remove urlpatterns for API.
[DEV-1981] Implement link fields for User and Person.
[DEV-1981] Update verbose_names on models for cleaner admin.
Merge pull request #37 from roverdotcom/DEV-1956

[DEV-1956] Disable RSS feed by default.
[DEV-1965] Update migrations to alter existing messages.
[DEV-1965] Fix 'drop_foreign_key' to 'delete_foreign_key' in migrations.