Consitently use exit status 1 for failures

Author: Rohan Jain

lib/server.js

@@ -123,7 +123,7 @@ exports.Server = function Server(bsClient, workers) {
             console.log("All tests done, failures: %d.", status);
 
             if (status > 0) {
-              status = 3;
+              status = 1;
             }
 
             process.exit(status);

lib/tunnel.js

@@ -23,7 +23,7 @@ var Tunnel = function Tunnel (key, port, callback, err) {
       if (stdout.indexOf('Error') >= 0) {
         console.log("..Failed");
         console.log(stdout);
-        process.exit(-2);
+        process.exit(1);
       }
     });
 

lib/utils.js

@@ -41,7 +41,7 @@ var alertBrowserStack = function alertBrowserStack (subject, content, params, fn
     if (typeof params === 'function') {
     } else {
       fn = function() {
-        process.exit(-2);
+        process.exit(1);
       };
     }
   }