updated image assets
Merge branch 'master' of https://github.com/neilbaylorrulez/devangelism

* 'master' of https://github.com/neilbaylorrulez/devangelism:
  small refactor
  overlays in a rough state
  small refactor
  more improved static header

Conflicts:
	sass/_home.scss
	sass/components/_nav.scss
	sass/components/_tabs.scss
	styles/main.css
updated navigation with new logo and menu button
updated contact style
make events section responsive