Make thinks more useful

Extract functionality from program.Program to api, so it can be used
from other python code.
And instead of adding predefined urls to root_urlconf, we should
/mount/ apps into a django project.

src/django_deploy/tests/test_api.py

@@ -0,0 +1,27 @@
+import os
+import unittest
+import pytest
+
+from ..api import DjangoProject
+from ..config import DJANGO_SETTINGS_DIR
+
+
+class DjangoProjectTestCase(unittest.TestCase):
+    @pytest.fixture(autouse=True)
+    def tmpdir(self, tmpdir):  # pylint: disable=method-hidden
+        self.tmpdir = tmpdir
+
+    def _assert_django_project(self, project_dir):
+        self.assertTrue(os.path.isdir(project_dir), 'no directory: {}'.format(project_dir))
+        settings_dir = os.path.join(project_dir, DJANGO_SETTINGS_DIR)
+        self.assertTrue(os.path.isdir(settings_dir), 'no directory: {}'.format(settings_dir))
+        settings_file = os.path.join(settings_dir, 'settings.py')
+        self.assertTrue(os.path.isfile(settings_file), 'no file: {}'.format(settings_file))
+        manage_script = os.path.join(project_dir, 'manage.py')
+        self.assertTrue(os.path.isfile(manage_script), 'no file: {}'.format(manage_script))
+
+    def test_create(self):
+        project_dir = os.path.join(str(self.tmpdir), 'django')
+        project = DjangoProject(project_dir)
+        project.create()
+        self._assert_django_project(project_dir)