Escaping all variables passed to system commands.
Escaping all variables passed to system commands.
Escaping all variables passed to system commands plus fixed ajax loading of files in users hostdata directory.
Merge commit '164c23229356cc00e6802c34be18bda61fc630da'

Conflicts:
	modules/dns_manager/code/controller.ext.php
Reapply don't check for private and restricted IPs and TODO on DNS serial number