BUGFIX: if you seed data that has an id < 1 seed-fu attempts to reset the id sequence to an invalid id
add rake file
use rspec
fix specs in Rails 4
Failing test in DB=postgresql
Merge pull request #54 from SamSaffron/master

* commit 'refs/pull/origin/54':
  Failing test in DB=postgresql
  fix specs in Rails 4
  use rspec
  add rake file
  BUGFIX: if you seed data that has an id < 1 seed-fu attempts to reset the id sequence to an invalid id

Conflicts:
	lib/seed-fu/seeder.rb
	spec/spec_helper.rb