Update travis configuration

* Much more descriptive configuration.
change group testing to group test as testing doesn't exist

Conflicts:
	Gemfile
Remove factory_girl_rails and rspec-rails because they're specified in refinerycms-testing

Conflicts:
	Gemfile
Changed the searched for page URL to match the seeded page URL.
Updated deprecated use of body_content_left and loaded the seeded page to fix failing specs.

f514ac532713830ef20b4a883d84ad15265c6a9f is also required to pass the specs as it selects the seeded page.

Fixes #77
Changed plugin.menu_match to match the items controller.