chore(test): interaction tests

- webdriver.quit throws a no session error
- define "quit" at runner.ts similar to restart where the driverprovider
  calls quit instead of the webdriver

lib/runner.ts

@@ -257,6 +257,10 @@ export class Runner extends EventEmitter {
       this.setupGlobals_(browser_);
     };
 
+    browser_.quit = () => {
+      this.driverprovider_.quitDriver(browser_.driver);
+    }
+
     return browser_;
   }
 

scripts/attachSession.js

@@ -9,7 +9,7 @@ var sessionId = '';
 
 // 1. Create a new selenium session.
 var postData = JSON.stringify(
-  {'desiredCapabilities': {'browserName': 'chrome'}});
+  {'desiredCapabilities': {'browserName': 'firefox'}});
 var createOptions = {
   hostname: 'localhost',
   port: 4444,

spec/interaction/interaction_spec.js

@@ -11,9 +11,8 @@ describe('Browser', function() {
     // throughout all of your tests). However, I'm forking browsers in my tests
     // and don't want to pile up my browser count.
     if (newBrowser) {
-      newBrowser.quit().then(function() {
-        done();
-      });
+      newBrowser.quit();
+      done();
     } else {
       done();
     }