better screen reader support

added support for .visuallyhidden instead of display: none. see
https://github.com/h5bp/html5-boilerplate/blob/v4.2.0/doc/css.md#visuall
yhidden for description
fixed mistake in docs, closes #189
css: Foundation styles reset
docs upd
Merge pull request #185 from jonespen/master

better screen reader support
Fix: tab focus not set correctly
0.9.5 version bump
use newer version of grunt-jekyll

otherwise you get deprecation errors if you are using latest version of jekyll gem
Merge pull request #208 from builtbylane/patch-1

use newer version of grunt-jekyll
Some English grammar fixes in documentation.md
Merge pull request #209 from jfinkels/patch-1

Some English grammar fixes in documentation.md
Update documentation.md

Fixed a real tiny typo.
Merge pull request #210 from fdeberle/patch-1

Update documentation.md
Bottom bar margin dependent on image padding
Merge pull request #214 from saulshanabrook/patch-1

Bottom bar margin dependent on image padding
Fixed a parsing error in libsass (dependency of grunt-sass)
Merge pull request #218 from wet-boew/fix-libsass-parsingerror

Fixed a parsing error in libsass (dependency of grunt-sass)
$.magnificPopup.close() shouldn't throw an exception if theres no instance
Indent and combine SCSS classes
Add basic Travis-CI build

- Add basic Node build
- Added build badge