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.

llx_ecm_files)

managed by submodules like are the templates of document or engines to
select emailing targets (scan of a dedicated dir)

to keep it if required.

(sometimes we need, sometimes not).

[Usability]
Enhance install procedure by automatically suggesting the database
port and administrative user on database type selection.