Adds placeholder button formatting
Adds breakpoints for different widths.
Merge pull request #4 from mattkennedynz/breakpoints

Adds breakpoints for different widths.
Adds card deletion from the expanded view
Adds cutesy loading animation, in place of the '...loading...' text
Removes misc Sublime Text file
Adds Google Analytics tracking code
Removes Dropbox file conflicts
Removes keyboard navigation
Merges master into card-redesign