Use jasmine_selenium_runner to run specs via Sauce

Rakefile

@@ -2,12 +2,9 @@ require "bundler"
 Bundler::GemHelper.install_tasks
 require "json"
 require "jasmine"
+unless ENV["JASMINE_BROWSER"] == 'phantomjs'
+  require "jasmine_selenium_runner"
+end
 load "jasmine/tasks/jasmine.rake"
 
-# TODO: Is there better way to invoke this using Jasmine gem???
-desc "Run jasmine core specs in a browser."
-task :core_spec do
-  exec "ruby spec/jasmine_self_test_spec.rb"
-end
-task :default => :core_spec