Replace 320 and Up for Rock Hammer

320 and Up was replaced by Rock Hammer and is no longer being developed
Fixing Broken Link

Under "calculators" the link to "fluid grids" was broken.
Updated resources

Added hoisin.scss to resources.html
Added a new link to the Viewport Testing section in resources.html
Updated patterns.html

Added 3 Columns content reflow from Codepen
Merge pull request #49 from leandrocp/gh-pages

Replace 320 and Up for Rock Hammer
Merge pull request #56 from 14islands/gh-pages

Added responsive.io to server-side image solutions in resources.html
Merge pull request #54 from ramono/gh-pages

Added our responsive grid
Merge pull request #55 from morganesque/gh-pages

New viewport testing resource.
Merge pull request #50 from marchdoe/patch-1

Fixing Broken Link
Added link to my upcoming book, "Responsive WordPress Theming".
Merge pull request #57 from taupecat/gh-pages

Added link to my upcoming book, "Responsive WordPress Theming".
Added Great Responsive Web Design is a Matter of Process
Added Icon Font and Responsive Media Sections
Remove stray "i" from top of page. Responsive Design Workflow
Adding case study

A case study written by Matt Gibson from Cyber-Duck
Merge pull request #60 from ramono/gh-pages

Adding case study
Case studies written by Hjörtur Hilmarsson from 14islands