Rollback of migrations
Added base models for users, groups, permissions and sites
Added create_users_table migration
Added create_user_profiles_table migration
Added create_user_links_table migration
Added create_user_sites_table migration
Added create_groups_table migration
Added create_permissions_table migration
Added create_group_permissions_table migration
Added create_sites_table migration
Added create_site_options_table migration
Added create_site_domains_table migration
Removed 'id' and timestamps from create_user_profiles_table migration
Removed 'id' and timestamps from create_user_links_table migration
Removed 'id' from create_user_sites_table migration
Fixed table name in schema for create_group_permissions_table migration
Fixed table name in schema for create_site_domains_table migration
Added models for users, sites, groups, permissions and their relationships
Removed unused models, they weren't using PSR-0 standards