soft deletes available for applications and environments

- parent relation will not include applications or environments marked
  as deleted
- domain classes will exclude deleted objects from selections
- changed some test factories to use domain_word for resource names,
  because they were using person names and it bugged me

alembic/versions/fd0cf917f682_add_soft_delete_to_applications_and_.py

@@ -0,0 +1,31 @@
+"""add soft delete to applications and environments
+
+Revision ID: fd0cf917f682
+Revises: 32438a35cfb5
+Create Date: 2019-04-09 06:16:15.445951
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import expression
+
+
+# revision identifiers, used by Alembic.
+revision = 'fd0cf917f682'
+down_revision = '32438a35cfb5'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('applications', sa.Column('deleted', sa.Boolean(), nullable=False, server_default=expression.false()))
+    op.add_column('environments', sa.Column('deleted', sa.Boolean(), nullable=False, server_default=expression.false()))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('environments', 'deleted')
+    op.drop_column('applications', 'deleted')
+    # ### end Alembic commands ###