Add evaluation type
Some infrrastructure cleaning
Upgrade everything

Upgrade mongoid, rspec and remove spork
Remove trivial specs
Convert specs to RSpec 2.99.0.beta2 syntax with Transpec

This conversion is done by Transpec 1.10.3 with the following command:
    transpec

* 64 conversions
    from: obj.should
      to: expect(obj).to

* 15 conversions
    from: == expected
      to: eq(expected)

* 11 conversions
    from: it { should ... }
      to: it { is_expected.to ... }

* 10 conversions
    from: its(:attr) { }
      to: describe '#attr' do subject { super().attr }; it { } end

* 6 conversions
    from: be_true
      to: be_truthy

* 3 conversions
    from: obj.should_not
      to: expect(obj).not_to
Add pry for testing
Add tutors to system