Recently links to web.archive.org were added for various products. Such links are very long to load. This increases the default timeout value so that such links do not make the update fail.
The script only get versions 4.x and above, see script comments for more informations.
Note that the code related to git has been extracted to a common script so that it can be reused for the Debian script.
Create a common function to write resulting JSON files to the releases directory.
It makes this task simpler to read and maintain, while making it modifiable at a central point in the future.
One example of such modification could be the sorting of the versions in a uniform way for all the scripts.
This creates a common function to fetch HTTP URLs, with enhanced capabilities (retry, use of a known User-Agent).
It makes scripts that need those capabilities simpler, while improving other scripts.
This commit also fixes some scripts that did not log properly (cos.py, eks.py, haproxy.py, palo-alto-networks.py, rhel.py, ros.py, unrealircd.py).
Generic scripts are scripts that handle multiple product based on some identifier (URL, coordinates...).
This creates a common function to list and load product configurations for those scripts.
It makes them simpler to read and maintain, while making the way they work much more consistent.
