init firewall sources

	check each zone for trusted sources and remove them before applying to new zone, otherwise conflicts could arise
	removed extra echo at end of each file

On branch centos7
Changes to be committed:

	modified:   scripts/aliases.sh
	modified:   scripts/firewalld.sh
	modified:   scripts/lemp.sh
	modified:   scripts/linux_update.sh
	modified:   scripts/middleman.sh
	modified:   scripts/nginx_config.sh
	modified:   scripts/server_ssh.sh
	modified:   scripts/swap.sh
	modified:   scripts/wordpress_install.sh
	modified:   scripts/workstation_ssh.sh