[webappsec] updated test VM available

I've updated the WebAppSec Test VM.

What's new:

Browsers updated. (Opera 12.14, Chrome 26.0.1410.19 beta, Firefox Aurora  21.0a2)
Updated packages and slimmed down the VM size by removing unnecessary ones.
Test repo updated, checkout in webroot no longer owned by root for easier editing.
New HTTPS certificate, now valid for 5 years and for both *.w3c-test.org and w3c-test.org.
Apache listening HTTP on ports 80, 81, 82, 83 and 88 and HTTPS on 443.

The "readme" is now an HTML file, set as the homepage of all the browsers and checked into and loaded from the Hg repository, so we can update it without having to redistribute the VM. (https://dvcs.w3.org/hg/webappsec/raw-file/tip/vm/index.html)

There may be one more update between now and the April F2F if the repos move over to Git, but if you want to get working on test cases now, get it here:

https://dl.dropbox.com/u/76057758/WebAppSecTestVM.tar.bz2

Brad Hill