Improved login-box.
- Made textboxes smaller.
- Removed labels and put placeholder in the inputs instead.
- Put the error-message in front, now there's enough space for 1
paragraph.
Fixed CSS-bug in menu where styles would be inherent by dropdown menu.
Put CSS-classes in HTML instead of in the JavaScript-classes, more
reusable.
Merge branch 'master' of https://github.com/madeentje/ember-wcms.git

Conflicts:
	WebContent/css/application.css