Adding a config option, automaticConfigReload, controlling the behaviour of the config file reloading feature.

exampleConfig.js

@@ -99,6 +99,8 @@ Optional Variables:
                      [ { metric: 'foo', bins: [] },
                        { metric: '', bins: [ 50, 100, 150, 200, 'inf'] } ]
 
+  automaticConfigReload: whether to watch the config file and reload it when it
+                         changes. The default is true. Set this to false to disable.
 */
 {
   graphitePort: 2003

lib/config.js

@@ -24,7 +24,9 @@ var Configurator = function (file) {
   this.updateConfig();
 
   fs.watch(file, function (event, filename) {
-      if (event == 'change') { self.updateConfig(); }
+    if (event == 'change' && self.config.automaticConfigReload != false) {
+      self.updateConfig();
+    }
   });
 };