Add Aves theme as submodule

[vorakl]

Aves - a theme for the Pelican

It's based on the tuxlite_tbs theme but was significantly rewritten and extended by new features and customization.

Features

• Most of interface blocks such as a menu and a side bar, including their elements, can be turned on and off
• An archives index with links to years and months
• Lists of categories, tags, authors and pages with an elements' description as separate pages
• Lists of pages on a side bar
• Configurable start page (what page to show if access the site's root)
• A compact paginator for the unlimited number of pages
• Provided configuration hides all html files in the end of links. All URLs end with a slash (e.g. site/path/to/)
• Any sub-directories along the path of URLs are accessable (e.g. site/tag/misc/ , site/tag/ , site/)
• A year in a copyright notice How to Write a Copyright Notice is set dynamically and it depends on an entity:
  • on group pages (tags, articles) it's set to dates of a first and a last articles
  • on a single page or article it's set to a creation date
• Versioning of static assets from the config file
• Configurable header tags (meta) for SEO and a separate template for a favicon
• Shows avarage time to read an article
• Bonus:
  • a template of content directory and examples of configuration files for a tyical site
  • a simplified version of a Makefile (requires adjusting only a few path variables in a header) with a few features:
    • bundle CSS and JS files
    • build sites using dockerized Pelican
    • serve sites using dockerized Nginx
    • fallback to local/virtualenv Pelican with an integrated web server
    • one-liner to publish a site to a docs to the GitHub Pages in the same branch

[vorakl]

Hi @justinmayer,

I've just noticed there was a conflict in .gitmodules
I fixed it!
It would be great if you could take a look at my theme.
If there is something that prevents it from being merged just tell me and I'll fix it.

Thanks!