Is it ok the 2 else blocks are the same?

NULL by defaut. 

This reverts commit 452f7be4.

Conflicts:
	htdocs/websites/class/website.class.php

Fix date of supplier proposal missing.

Make sure we have a space between attributes.

These variables are expected to be uninitialized when the forced install
process is not used.

event company "create" was not tracked by default like others.

Tamper proofed the process by not relying on POST values for forced fields.
Disabled all fields set when $force_install_noedit is set.
Added a full-featured forced install config file template.

On the side:
Improved Dolibarr root and url detection.
Prevent install locking if install was not successful.
Added missing translation on failed administrator creation.
Better escaping of posted values.