Add header, but not with bootstrap
add header and login modal
Add header, but not with bootstrap
add header and login modal
whitespace
Merge branch 'ethan/header-fun' of https://github.com/calblueprint/worldreader into ethan/header-fun

Conflicts:
	app/views/books/index.html.slim
	app/views/layouts/_header.html.slim
Pass travis tests, add padding on checkbox side
use autoprefixer for transition, remove duplicated code
Merge pull request #59 from calblueprint/ethan/header-fun

Ethan/header fun