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.

Conflicts:
	htdocs/install/mysql/migration/3.6.0-3.7.0.sql
	test/phpunit/SqlTest.php

(duplicated with column tms).

Removed deprecated table llx_domain.

These are the same changes than commit 3afb3a874d9d1533947651de9db28c9207278908 but for the
migration script

them).

Fix: field to store amount must be double(24,8)