Rails initializer will conflict with Adhearsion if Rails gem used by app is not the newest on the system

I had this issue when I used the Rails initializer to load in a Rails 2.0.2 app with a Rails 2.1.0 gem installed on the system.

Adhearsion simply does require "active_support" and takes in the latest version on the system. This conflicts with Rails because Rails requires its activesupport gem be the exact version as the Rails app,

The solution seems to be having the Rails initializer initialize before requiring in active_support. Argh.

Sample output:

  ~/Desktop/myahnapp % ahn -
  /Library/Ruby/Site/1.8/rubygems.rb:142:in `activate': can't activate activesupport (= 2.0.2, runtime), already activated activesupport-2.1.0 (Gem::Exception)
  	from /Library/Ruby/Site/1.8/rubygems.rb:158:in `activate'
  	from /Library/Ruby/Site/1.8/rubygems.rb:157:in `each'
  	from /Library/Ruby/Site/1.8/rubygems.rb:157:in `activate'
  	from /Library/Ruby/Site/1.8/rubygems.rb:49:in `gem'
  	from /Users/jicksta/Desktop/myahnapp/gui/config/boot.rb:59:in `load_rails_gem'
  	from /Users/jicksta/Desktop/myahnapp/gui/config/boot.rb:53:in `load_initializer'
  	from /Users/jicksta/Desktop/myahnapp/gui/config/boot.rb:39:in `run'
  	from /Users/jicksta/Desktop/myahnapp/gui/config/boot.rb:11:in `boot!'
  	 ... 17 levels...
  	from /Users/jicksta/Desktop/0.8.0/lib/adhearsion/cli.rb:70:in `start'
  	from /Users/jicksta/Desktop/0.8.0/lib/adhearsion/cli.rb:18:in `send'
  	from /Users/jicksta/Desktop/0.8.0/lib/adhearsion/cli.rb:18:in `execute!'
  	from /Users/jicksta/Desktop/0.8.0/bin/ahn:28