Ensure git repo remains valid with unicode committer names. fix #152

Fix search hooks with WikiPage refactor

Create WikiPage class to encapsulate wiki page functions

(and let them work on Windows)

Use properties in config for pass-through compat vars

Strings are immutable, so when one variable changes the other will not,
as such there is variance on config load between variables that should
be the the value of another variable.

To solve that I've moved the config into a class and made those values
read-only properties to the loaded values.

Closes: #137 #138

Allow a flat view of index with the 'flat' query parameter

Update markdown2 dependency

Update README style guide link

Current link is a 404, point to PEP 8

Updated Dockerfile

Make datetimes customizable

Properly escape REALMS_WIKI_CONFIG variable

Fix presumed typo

I assume a trailing slash should be removed

Fix LDAP login