GitLab

Add the repository name among the info, and truncate commit
messages meaningfully to avoid super-long messages.

Use the dateutil package to convert the ISO date as datetime
seems not to support it very well.

This is all VERY basic and not ready to use. We use jinja2
for templating logic. Base HTML template included. The resulting
HTML is written on a file for now.

The file will be on the server.