[api] Expose Monitor.fork for using child_process.fork()

Author: indexzero

lib/forever/monitor.js

@@ -83,6 +83,7 @@ var Monitor = exports.Monitor = function (script, options) {
   this.args      = options.options || [];
   this.spawnWith = options.spawnWith || {};
   this.sourceDir = options.sourceDir;
+  this.fork      = options.fork || false;
   this.cwd       = options.cwd || null;
   this.hideEnv   = options.hideEnv || [];
   this._env      = options.env || {};