Removing django_evolution. It shouldn't live inside the project, it should 
be installed as a module.

• django_evolution/__init__.py
• django_evolution/db/__init__.py
• django_evolution/db/common.py
• django_evolution/db/mysql.py
• django_evolution/db/mysql_old.py
• django_evolution/db/postgresql.py
• django_evolution/db/postgresql_psycopg2.py
• django_evolution/db/sqlite3.py
• django_evolution/diff.py
• django_evolution/evolve.py
• django_evolution/management/__init__.py
• django_evolution/management/commands/__init__.py
• django_evolution/management/commands/evolve.py
• django_evolution/models.py
• django_evolution/mutations.py
• django_evolution/signature.py
• django_evolution/tests/__init__.py
• django_evolution/tests/add_field.py
• django_evolution/tests/change_field.py
• django_evolution/tests/db/__init__.py
• django_evolution/tests/db/mysql.py
• django_evolution/tests/db/mysql_old.py
• django_evolution/tests/db/postgresql.py
• django_evolution/tests/db/postgresql_psycopg2.py
• django_evolution/tests/db/sqlite3.py
• django_evolution/tests/delete_app.py
• django_evolution/tests/delete_field.py
• django_evolution/tests/delete_model.py
• django_evolution/tests/models.py
• django_evolution/tests/rename_field.py
• django_evolution/tests/signature.py
• django_evolution/tests/sql_mutation.py
• django_evolution/tests/utils.py
• django_evolution/utils.py