@@state_secret

[_why]

I was having some issue getting the class variables in
Camping::Session to work with some old apps, so I've changed
@@state_secret to a method.

  module Blog
    include Camping::Session
    def state_secret; "kxxxx" end
  end

Also, merged some of zimbatm's patches.  And trying to revive the
Junebug wiki <http://github.com/why/junebug> since it's still my
favorite one.

Oh and Passenger is working with Camping 2.0.  You just use
`run Blog` in your config.ru (following everything else in the
latest Passenger docs.)  Best to wait until they release 1.1.0 gems.

_why