Update and begin conversion to RSpec 3

Convert specs to RSpec 2.99.0 syntax with Transpec

This conversion is done by Transpec 2.2.0 with the following command:
    transpec

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

* 8 conversions
    from: describe 'some view' { }
      to: describe 'some view', :type => :view { }

* 3 conversions
    from: describe 'some controller' { }
      to: describe 'some controller', :type => :controller { }

* 3 conversions
    from: describe 'some helper' { }
      to: describe 'some helper', :type => :helper { }

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

* 2 conversions
    from: describe 'some feature' { }
      to: describe 'some feature', :type => :feature { }

* 2 conversions
    from: describe 'some model' { }
      to: describe 'some model', :type => :model { }

* 2 conversions
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

See also: https://github.com/yujinakayama/transpec#supported-conversions

RSpec fix for should_not gem

Convert specs to RSpec 2.99.0 syntax with Transpec

This conversion is done by Transpec 2.2.0 with the following command:
    transpec -v hook_scope

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

See also: https://github.com/yujinakayama/transpec#supported-conversions

Various cleanup

Misc fixes