Even when it looks a bit weird in first place to rename all internals
step by step, it makes sense to do so, because we run into confusion
afterwards.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

We don't support it on CDN false instances, but it doesn't hurt to keep
it in for CDN-enabled instances

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

It's sad but it's not working. For multiple releases this should be
already broken which shows how often it's used.

As there is also a security issue related to that, it's better to
remove the feature completely. Whoever wants to rewrite it, feel free to
go.

This commit removes the Google Drive integration from HackMD's Frontend
editor and this way removes the need to provide any API key and Client
ID in the frontend.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

This temporarily removes the Upload from the UI as it's broken right
now.

Needs a refactoring and can be added in again later on by undoing this
commit.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

This refactors the configs a bit to now use camel case everywhere.
This change should help to clean up the config interface and make it
better understandable.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

Implement basic CSP support

Before, closed disallowed guest edits completely, by removing
the `freely` permission. This makes it possible to explicitely bring
back guest-editing, but not guest-note-creation, to closed instances.

Signed-off-by: Dario Ernst <dario@kanojo.de>