Include project name

src/freedombone-utils-firewall

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-FIREWALL_CONFIG=$HOME/firewall.cfg
+FIREWALL_CONFIG=$HOME/${PROJECT_NAME}-firewall.cfg
 
 function save_firewall_settings {
     iptables-save > /etc/firewall.conf