Added flask_ldap_login patch

docker/flask_ldap_login.patch

@@ -0,0 +1,15 @@
+--- /usr/local/lib/python2.7/dist-packages/flask_ldap_login/__init__.py	2016-09-20 17:35:02.000000000 -0400
++++ /usr/local/lib/python2.7/dist-packages/flask_ldap_login/__init__.py.new	2016-09-21 00:54:48.023264379 -0400
+@@ -207,9 +207,11 @@
+         for opt, value in self.config.get('OPTIONS', {}).items():
+             if isinstance(opt, str):
+                 opt = getattr(ldap, opt)
+-
++        try:
+             if isinstance(value, str):
+                 value = getattr(ldap, value)
++        except AttributeError:
++            pass
+ 
+             self.conn.set_option(opt, value)
+