Registar a grunt task for browserstack runner

Just executed the cli for now

Author: Rohan Jain

package.json

@@ -1,7 +1,7 @@
 {
   "name": "browserstack-runner",
   "description": "A command line interface to run browser tests over BrowserStack",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "homepage": "https://github.com/browserstack/browserstack-runner",
   "repository": {
     "type": "git",

tasks/browserstack_runner.js

@@ -0,0 +1,21 @@
+var exec = require('child_process').exec;
+
+module.exports = function(grunt) {
+  grunt.registerTask('browserstack_runner','Your task description goes here.', function() {
+    var done = this.async();
+
+    // Merge task-specific and/or target-specific options with these defaults.
+    var options = this.options({
+      punctuation: '.',
+      separator: ', '
+    });
+
+    var subProcess = exec('bash -c "PATH=$PATH:$(npm bin) browserstack-runner"', function (err, stdout, stderr) {
+      done(err ? false : true);
+    });
+
+    subProcess.stdout.on('data', function (_data) {
+      grunt.log.writeln(_data.trim());
+    });
+  });
+};