Dependencies of the blog app example

[Popolon]

Thank you very much to made this framework.

The blog app example has at least the following python modules dependencies:

• libsass
• flask-wtf

For Arch Linux users:

• AUR: python-libsass (conflict and replace community sassc package)
• python-flask-wtf

I made an AUR python-activitypub package with dependencies db dependencies, I don't know if these two modules are dependencies for this activitypub module or only for the example blog app.