app/scripts/controllers: page name class fix

For the page name class added in: 3de9b850b75c92ea6584bcee2b2230ea2cc3c373

Was only replacing the first instance of '.' with '-'. Now replacing all instances in the string
app/views/partials/my_account_sidebar.html: Move 'My Account' sidebar into partial

DRY issue with the sidebar, so created a new partial.

'app/views/partials/my_account_sidebar.html' referenced in the following:
  - app/views/my_account.html
  - app/views/checkout.confirmation.html
  - app/views/get_started.confirmation.html
app/views/partials/my_account_sidebar.html: Style 'Sign Out' link
Website: Removed page id's and instead use body page class

No longer need to add in page id's/classes to style particular pages, because of page name class: 3de9b850b75c92ea6584bcee2b2230ea2cc3c373
Website: Temporarily reference CartCtrl

Layout and styles found in:
  - app/views/partials/cart_order_specs.html
  - app/views/partials/cart_order_total.html
  - app/views/partials/cart_product_rows.html

are also included in the following:
  - app/views/checkout.order_review.html
  - app/views/my_account.orders_single.html

Until an OrderCtrl is setup, the styling and template tags can be reused in 'app/views/my_account.orders_single.html'
Website: Changes for Issue #17

A bunch of small changes to help check off some items from https://github.com/azurestandard/website/issues/17