Add braces around single-line conditionals. See http://make.wordpress.org/core/2013/11/13/proposed-coding-standards-change-always-require-braces/.
Removed bullet that referenced keyboard-image-navigation.js, since that file was deleted.
Merge pull request #349 from taupecat/upstream

_s: Remove reference to keyboard-image-navigation.js. That file doesn't exist anymore.
_s: Use verbose syntax for conditionals in templates.
Merge pull request #343 from Automattic/add-braces

_s: Add braces around single-line conditionals.
_s: Update wpcom compat file to wrap contents in a hooked callback.
_s: Split navigation template tag in context-specific tags.