fix(ngController): allow dots in a controller name

The issue was introduced in cd38cbf975b501d846e6149d1d993972a1af0053
test(controller): instantiate controller defined on window

Just adding a missing spec.
feat(ngTap): Add a CSS class while the element is held down.
docs(injector): fix typo

Closes: #2551
test(ngAnimate): also provide W3C transition property to work on IE10

Closes: #2492
fix($location): back-button should fire $locationChangeStart

Before $locationChangeStart event is not broadcast when pressing the back-button on the browser.

Closes #2109