Change default browser for lettuce back to chrome.

common/djangoapps/terrain/browser.py

@@ -12,8 +12,8 @@ from django.core.management import call_command
 @before.harvest
 def initial_setup(server):
     # Launch the browser app (choose one of these below)
-    # world.browser = Browser('chrome')
-    world.browser = Browser('phantomjs')
+    world.browser = Browser('chrome')
+    # world.browser = Browser('phantomjs')
     # world.browser = Browser('firefox')