[Radiant] BUG/WORKAROUND: rake radiant:update in 0.6.5

[Sean Cribbs]

I hate to be the bearer of bad news after such a big release, but there 
is a minor problem with the "radiant:update" rake task for users that 
are upgrading their existing projects.  I have fixed the problem in the 
git repository, but here's the workaround in the meantime:

In your project directory, create the public/javascripts/admin/ 
subdirectory, like so on *nix or Mac OS:

mkdir -p public/javascripts/admin

Then run "rake radiant:update" to get the new javascript (and other) 
files.  Thanks to Andrew Vonderluft for helping me find this bug when 
upgrading the Radiant servers.

Sean