Removed attr_accessible & ProtectedLists, replaced finder
Changed syntax ruby1.9
Update acts_as_list.gemspec
Removed version ruby1.8
Merge remote-tracking branch 'upstream/master' into rails4_compatibility

Conflicts:
	test/shared_list.rb
Removing allowed failures on travis, Updating ActiveRecord version
Merge pull request #80 from philippfranke/rails4_compatibility

Rails4 compatibility