Add wiki audit logs (#52)

* Add wiki audit logs

* Flake8 issues

* Forgot to remove debug prints

* Removed print but forgot to remove `.text`

* Futile attempt to increase coverage

* Reading up on API docs asks us to send User-Agent with our info in it

* Add tests for wiki

* Well played, Travis

* Nothing in my local env is working on travis lol

* Why does it appear it can't decide between 200 & 302 :thinking:

* Flake8

* Post route

* Same issue with local env working differently from Travis env

* Add page to show page is being edited

* Lock page when it is being edited

* Add JS to keep refreshing lock on article

* Add compare route to render diff

* Add revision table to database

* Add revision storage

* Add revision list route

* JS for Revision list radio buttons

* Add revision comparison template

* Add revision list template

* flak8 my ass

* [Unit Tests] New unit tests for history routes :sparkles:

* Does this fix things?

* Address gdude's reviews

* Noticed a bug in the diff generation route which meant that empty posts could potentially error

* Flake 8

* Audit logs were logging after change, meaning it was comparing after & after, which didn't work

* Change table name

* Remove whitespace from line to fix flake8 issue

* Address reviews

* Git hook made me do something wrong, apologies

* Switch from werkzeug redirect to flask one

* Address Apertures reviews

1 files changed, 13 insertions, 0 deletions

diff --git a/templates/wiki/compare_revision.html b/templates/wiki/compare_revision.html
new file mode 100644
index 00000000..34ab61bc
--- /dev/null
+++ b/templates/wiki/compare_revision.html
@@ -0,0 +1,13 @@
+{% extends "wiki/base.html" %}
+{% block title %}Wiki | Comparing {{ title }}{% endblock %}
+{% block og_title %}Wiki | Comparing {{ title }}{% endblock %}
+{% block og_description %}{% endblock %}
+{% block content %}
+    <div class="uk-container uk-container-small">
+        <h2 class="uk-title">
+            Revision comparison for {{ title }}
+        </h2>
+
+        {{ diff | safe }}
+    </div>
+{% endblock %}