Cleaned up markup and some assertions
Removed comment in JSON, fixed grammar
fixed small typo in note
fixed links to screen orientation API
fixed a few issues with icons processing
Editorial change for how to process icon sizes
Fixed typo and simplified sizes algorithm
removed protocol from Respec.
removed <br> elements from example.
rewrote Display Modes section
fixed typo in header links
Added definition and link to ES's HasOwnProperty
Merge pull request #182 from w3c/typos

Fixed some typos, broken links, etc.