Use more explicit name for class and functions

htdocs/compta/bank/account.php

htdocs/compta/charges/index.php

htdocs/compta/salaries/class/paymentsalary.class.php

htdocs/compta/salaries/fiche.php

htdocs/compta/salaries/index.php

htdocs/install/mysql/migration/3.5.0-3.6.0.sql

htdocs/install/mysql/tables/llx_payment_salary.sql

htdocs/langs/en_US/compta.lang

htdocs/langs/fr_FR/compta.lang