Remove unneeded favicon HTML

`/favicon.ico` is the implied favicon location, so no HTML is needed in this case. See http://mathiasbynens.be/notes/rel-shortcut-icon for more info.
Added `lang` attribute to `html` element.
'xhtml' > 'html'

At some point, we all need to let our exes go.
Merge pull request #9 from potch/patch-2

'xhtml' > 'html'
Merge pull request #6 from grantpalin/master

Page language attribute
Merge pull request #4 from mathiasbynens/patch-1

Remove unneeded favicon HTML
Remove optional trailing slashes
Merge pull request #11 from potch/master

Remove trailing slashes when optional.
FOUC message is irrelevant
FOUC message is irrelevant
Removing meta keywords, #10
Adding 001 so I can work on the PHP
favicon added, but I think I might update it later
Throwing in the PHP version of the index page
Revising metadata order, #5
More accurate comment
Added focus indicator for keyboard focus
Merge pull request #12 from GeorgeZamfir/master

Add keyboard focus indicator
Adding first round of designs
Converting acronym references to abbr