delete assets and components
add new images for header
font weight for icon = 100
introduce "f-cards" css styles
remove smartShadow mixin

Moved the smartShadow mixin into style.scss
create card styles for tasks
moved smartShadow mixin to global sass file
reformat html and add styles

Reformatted the html for cards and attached appropriate styles for them.
update min version
add array controller and changed FIXTURES

created the array controller to handle tasks and added objects to the
FIXTURE data.