Add `index.html` to the list of expected index files. Fixes #223
Update contributors list
Update new language around SSH access in Windows
Remove some detail around `vagrant destroy`

Over time it would be nice to forget about `vagrant destroy` as part of the workflow.
Remove attempt to use index.html other than as a fallback

If we have index.html in try_files, requests for files that should result in 404 somehow work into the same redirect loop that is described in http://core.trac.wordpress.org/ticket/20746

By leaving the other index.html line in the config, it is still used as the default fallback, there is just no need to use try_files in combo with it.

See #233
Remove tcp_nodelay directive

The reasoning here - https://github.com/h5bp/server-configs-nginx/issues/28 - seems to make sense. When we set `tcp_nodelay` to off, we tell Nginx to use Nagle's algorithm to figure out how packets should be buffered with a possible 500ms latency if it can't figure things out in time. This 500ms latency is something that even Nagle says (http://developers.slashdot.org/comments.pl?sid=174457&threshold=1&commentsort=0&mode=thread&cid=14515105) should stay in the 1980s.

Suggesting we remove this directive and leave it to Nginx's default `on` to *not* use Nagle's algorithm.
Process subdomains for each default domain we provide Nginx configs for.

This makes it easier to setup multisite with subdomains while avoiding too many file edits in the VVV base. Other modifications will still be required, such as setting up recognition for the new hosts on the local machine and in the guest, but this takes away the need to restart Nginx.