Merge branch 'hotfix/navigation-bug'

Remove line-wrap on top navigation links that may span two lines

Correct top navigation link bug, fixes #10

Update README.md

Merge branch 'hotfix/screenshot'

Update screenshot

Update README.md

Merge branch 'release/1.1.2'

Update theme setup documentation

Darken code background

Add Twitter Card summary large image

Merge branch 'feature/build-script' into develop

Optimize images

Minor adjustments to TOC and author sidebar

Gruntify stylesheets

Update scripts

Init Gruntjs build script

Merge branch 'hotfix/404-page'

Merge branch 'hotfix/404-page' into develop

Add custom 404 page