Migrate from SVN to Git

There is lots of article about migration from SVN to Git (a powerful distributed version control system), but I didn't find all needed information in only one.
This is the aim of this article.

Hemera v0.1.5 released

Hemera is a Virtual Intelligent System aggregating some more advanced Artificial Intelligence Technologies (speech synthesis, speech recognition, form recognition, motion recognition ...); with applications in daily tasks, domotics and robotics.

Git, a powerful Distributed Version Control System (DVCS)

In last ten years, we've seen emergence of Distributed Version Control Systems (DVCS).
IMO, the noteworthy advantages of a Distributed Version Control System against a Centralized one are:

Activate logging for Mozilla applications (Firefox, Sunbird, Thunderbird ...).

There is many applications using NSPR, including Mozilla ones (Firefox, Sunbird, Thunderbird ...).
NSPR provides a set of logging functions which can be activated with

Change window behavior to prevent focus stealing (under KDE and Gnome)

Bored of programs stealing focus ?
For instance, you launch an application which takes time to start, you switch to something else to work, and after some time the main window of your just launched program pops up and steals focus (including keyboad ...).

This article gives instructions to change this behavior both under