Audit passwords and bind_key usage for proper quoting

[sdodson]

In README.asciidoc we say

NOTE: Passwords used to secure various services. You are advised to specify
only alphanumeric values in this script as others may cause syntax
errors depending on context. If non-alphanumeric values are required,
update them separately after installation.

We should audit all situations where we deal with passwords and other strings which may contain special characters to ensure safety rather than suggesting users avoid special characters.

[detiber]

+1, I suspect the issue is where we are using those passwords in templated scripts (mongo configuration, register_dns, etc) as opposed to places we are just setting the passwords directly in the templated config files.

It is possible that we are failing to properly quote in some of ini style configs as well though.