Load foreman config in katello:reset rake task

The rake task katello:reset was failing during seeding, because
the admin user being created didn't have an email address.

This was because the foreman config settings weren't being loaded
before running db:seed.

I also added a test indicating that email is a required attribute.
v2-orgs - update v2 api and apipie

v2-orgs - update test
api v2 systems_controller - systems actions
Merge pull request #3514 from komidore64/systems-cont

api v2 - systems actions
Merge pull request #3537 from mkelley33/seed-admin-email

Add email for admin user to seeds
Merge pull request #3504 from thomasmckay/v2-orgs

v2-orgs - update v2 api and apipie
sysgroup-ui - fix route /system_groups/123/systems for UI

sysgroup-ui - updates based on comments

sysgroup-ui - fixed param checking

sysgroup-ui - rubocop fix
Merge pull request #3530 from thomasmckay/sysgroup-ui

sysgroup-ui - fix route /system_groups/123/systems for UI