Fix for slow Firefox/Chrome connects to localhost

While doing some recent testing I noticed that Chrome(v3) and Firefox(v3.5) are both very slow to connect to http://localhost on Windows 7 - both take ~1 second just to connect.

I initially suspected something was wrong with the webserver on localhost, but once I validated that wasn't it, I found some blog posts about others who had noticed this in Vista and XP. Essentially, disabling ipv6 takes care of the slowness.

However, to fix the issue, have the client use http://127.0.0.1 instead of http://localhost - it bypasses ipv6 without you needing to mess with browser configuration.