stub out configure-projects command, fill out README.md a bit

`configure-projects` uses the python-gitlab project to loop over all
projects in the instance and disable issues and wikis.

This also adds a requirements.txt and some rudimentary instructions in the
README.

README.md

 gitlab-settings
 ===============
 
-A collection of GitLab CE settings, and a Python script for applying them via
-[the settings API][gl-settings].
+A collection of GitLab CE settings for the [Wikimedia GitLab instance][wmf-gl],
+along with Python utilities for applying them via [the settings
+API][gl-settings].
 
 [gl-settings]: https://docs.gitlab.com/ce/api/settings.html
+[wmf-gl]: https://gitlab.wikimedia.org/
+
+Installing
+----------
+
+```sh
+pip3 install -r requirements.txt
+```
+
+Usage
+-----
+
+View current instance settings:
+
+```sh
+./view-settings
+```
+
+Apply instance settings from `settings.yaml`:
+
+```sh
+./apply-settings
+```
+
+Apply project settings (at the moment, this disables wikis and issue tracking
+for any projects that have turned it on):
+
+```sh
+./configure-projects
+```

configure-projects

+#!/usr/bin/env python3
+
+"""
+  configure-projects - apply settings to all projects on GitLab instance
+"""
+
+import os
+import sys
+import yaml
+import argparse
+import gitlab
+import time
+
+from gitlab_settings.util import get_token
+
+def get_gitlab():
+    """Get a GitLab instance."""
+    token = get_token()
+    print(token)
+    server = gitlab.Gitlab('https://gitlab.wikimedia.org/', private_token=token)
+    return server
+
+def get_projects():
+    """Get all projects on the server as a generator."""
+    server = get_gitlab()
+    return server.projects.list(all=True, as_list=False)
+
+for project in get_projects():
+    if project.issues_access_level != 'disabled':
+        print('Disabling issue access for ', project.name)
+        project.issues_access_level = 'disabled'
+        project.save()
+    else:
+        print('Issues already disabled for ', project.name)
+
+    if project.wiki_access_level != 'disabled':
+        print('Disabling wiki access for', project.name)
+        project.wiki_access_level = 'disabled'
+        project.save()
+    else:
+        print('Wiki already disabled for', project.name)
+
+    time.sleep(.5)

requirements.txt

+python-gitlab

view-settings

@@ -13,7 +13,7 @@ import sys
 import yaml
 from gitlab_settings.util import get_token
 
-token = get_token
+token = get_token()
 url = 'https://gitlab.wikimedia.org/api/v4/application/settings'
 headers = {
     'User-Agent': 'gitlab-settings/0.0.1',