Merge branch 'rails4-hack' into rails4

Conflicts:
	test/helpers/rails_helper.rb
	test/helpers/rails_project.rb
Setup for Rails 4.0 and beyond.
Fix a typo
Rails 4 uses the same sprockets require.
Does not exist yet.
Be a bit more permissive with rails 4 versions
Ignore the appraisal locks
Remove the appraisal lock files.
Merge branch 'rails4'

Conflicts:
	Appraisals
	gemfiles/rails3.gemfile.lock
	gemfiles/rails31.gemfile.lock
	gemfiles/rails32.gemfile.lock
	gemfiles/rails40.gemfile
	test/helpers/rails_helper.rb
	test/helpers/rails_project.rb
Do version 1.1.x for Rails 4 support.

Drops support for Rails 2.3

Version 2.0.0 of compass-rails will be compatible
with compass 1.0.0+ when it comes out.