Set Nesta root for local dev/testing.
Switch to responsive design, with Roboto Slab font.
Changed colours from orange to blue.
Use respond.js, add device-width meta tag.
Note responsive design in CHANGELOG.
Fix margin beneath h1 tags outside article listings.
More fine tuning of margin beneath headings.
Removed bottom-margin on images in page body.
Add bold style for Roboto Slab font.
Only allow comments on articles by default.
Added skip-sitemap flag (fixes #137).
Don't serve draft pages in the XML sitemap.
Improved notes on changes to comments.
Add links to mailing list and twitter
Use hash-style keyword arguments for path_to helper
Re-wording in CHANGES
Updated dependencies, removed dev gems
Use debugger instead of ruby-debug
Remove rspec deprecation warnings

stub! -> stub
mock -> double
Remove errant call to Sinatra.helpers in fixture