Revert "Code refactoring. Improve folder structure. For better project implementation. Most hosting server have a default folder public or public_html insted of htdocs, htdocs is a exclusive folder for apache web server, for example is no the same folder in NGINX."

This reverts commit e91c2c6e.

Code refactoring. Improve folder structure. For better project implementation. Most hosting server have a default folder public or public_html insted of htdocs, htdocs is a exclusive folder for apache web server, for example is no the same folder in NGINX.

missing import_key field, ref generator parameter must be task not
project, import must use css, serious database integrity problem
accepting duplicate tasks.

he is also assigned to project (and if not assign it)

convenient and save spaces.

Conflicts:
	htdocs/ftp/index.php

Fix: visible list of tasks are for opened project only.

Dolibarr uses HTML 4.01 or HTML5 doctypes.
The input form disabled attribute should not have a value.