Allow setting a different title for the recent posts.
Revert changing the post title of last article.
Remove final TODO.
Use the same syntax in all files.
Add people template.
Fix the authors field.
Add containers to cabal file.
Make people page (using tags for now, just testing).
Make pages for each contributor (still using tags).
Add page listing contributors and count of articles.

An idea I had for quite a long time, finally implemented. This commit fixes
everything regarding this feature. Look at the previous commits for small-steps
implementation.