Max-width for responsive content pictures
Narrower content column. Fixes #73
Redirect the old `showModalDialog` URL to the new one
Add missing video files

Fixes #78.
Move `showModalDialog` to articles
Include `<link>` that points to Atom feed on the home page

Closes #80.
Add missing intro
Nuking stupid typos

If only there a native speaker on the team who could write English what
is proper.
Added a link to Coast icon guidance

.. after several ppl asked on tweeter
Add more missing images
Converted to MD. Fixes #82
Merge branch 'master' of github.com:operasoftware/devopera
Lost <feature> elements returned
A few other pseudo-tags returned
Figure moved to separate file
Grid styles included back, HTML for grids moved to bookmarklet
Mistype in figure inclusion
Set up some more redirects
Minor editorial fixes to DeviceOrientation article
Improve layout of nested headings (h2-h4)