add aurweb.db.session

+ Added Session class and global session object to aurweb.db,
  these are sessions created by sqlalchemy ORM's sessionmaker
  and will allow us to use declarative/imperative models.

Signed-off-by: Kevin Morris <kevr@0cost.org>

test/test_config.py

@@ -0,0 +1,13 @@
+from aurweb import config
+
+
+def test_get():
+    assert config.get("options", "disable_http_login") == "0"
+
+
+def test_getboolean():
+    assert not config.getboolean("options", "disable_http_login")
+
+
+def test_getint():
+    assert config.getint("options", "disable_http_login") == 0