Update mosh release to 1.2.4
Update example directory
Update OS X pkg to 1.2.4 (courtesy achin)
Switch YouTube to HTTPS
Use protocol-relative URLs for mosh downloads

Now that there's an SSL certificate, don't force downloads over HTTP,
instead use the same protocol as the user is visiting the site with.
Revert "Update OS X pkg to 1.2.4 (courtesy achin)"

This reverts commit beea07ecd32561e00b20ac54a2a89a11ac01bd5c.

Conflicts:
	index.html
Switch the html5 shim to a protocol-relative URL as well
Fix a stray '' that should be a "
Remove empty <p></p> tags

These tags might were adding a bit of white space around certain
elements, but are unnecessary since the CSS ensures there's enough
white space to go around.
Add news section (with link to Ideas List)
Include elevator story and 1.2.3 release
Killed tabs in favor of spaces; fixed about section to be more readable and use only two columns
fixed crazy HTML markup in news section
Put styles in a stylesheet file instead of in the head
Added padding between news list items
Put features in four columns
fixed sections so you can see the heading you jumped to underneath the top bar
Made icons and headers in the installation instructions section more consistent; edited OSX logo to be shorter and added a homebrew logo
Put ubuntu in the leftmost column of installation instructions
Reformatted the build instructions section to be less chaotic