Escape SPHINXOPTS

Needed if any of the dirs contains spaces.

Fixes #15
Merge pull request #17 from Jellyfrog/patch-1

Escape SPHINXOPTS
update dependencies
Add JSHint and csslint support via npm run check/lint
Revert f10efdd863f578399806a913d5023407fd54d183 and e88f8472c53e46d6f1c47b6d4dc3eb0412d9d0f4.

The outline is useful for accessibility.
index.rst: add an abbr for MPC-HC
Show the RSS icon before the latest news header.
rename logo.png to logo-128x128.png
Follow up to 969a4a235013ca0f428dcc4e43294378f25b2455:

Remove outline: none from the social icons.
update deps
Readme.md: link to JSHint and csslint
binaries-are-signed.rst: use the right class and style for internal link
add a donations page with Flattr and Paypal
update normalize.css
switch to Open Sans font
style.css: sort properties
switch to class
Working on a multi column footer
add acknowledgments page
index.rst: remove social networks since they are in footer