Start Version 2.0 in name.
Merge branch 'master' into 2-0-stable

Conflicts:
	lib/compass-rails/version.rb
Drop support for Rails 3.0
Assume asset pipeline for simplicity.

The focus of compass-rails asset pipeline compatabiliy.
Make boot_config more readable.
Reflect the current recommended install in README.
Be more Rails way with railtie config.
Merge pull request #149 from Compass/2-0-stable

Master to Version 2.0.0