Revised Credits Page, Removed additional mobile Donate button and .not-mobile class from main donate button

	new file:   LICENSE
	modified:   README.md
	modified:   assets/css/app.css
	modified:   assets/css/ie8.css
	new file:   assets/haml/credits-archived.haml
	modified:   assets/haml/credits.haml
	deleted:    assets/haml/ie-testing.haml
	modified:   assets/haml/index.haml
	modified:   assets/html/credits.html
	deleted:    assets/html/ie-testing.html
	modified:   assets/html/index.html
	deleted:    assets/html/test.html
	modified:   assets/scss/components/_bit-rwd.scss
	modified:   assets/scss/components/_bit-typography.scss
	modified:   assets/scss/components/_block-credits.scss
	modified:   assets/scss/components/_block-structure-general.scss
	modified:   assets/scss/components/_block-structure-story.scss
	modified:   assets/scss/ie8.scss
	modified:   changelog.md