update rails, rspec to more modern version
update for linux and local database designation
Convert specs to RSpec 2.99.1 syntax with Transpec

This conversion is done by Transpec 2.3.6 with the following command:
    transpec -b true,false

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

* 10 conversions
    from: Klass.any_instance.stub(:message)
      to: allow_any_instance_of(Klass).to receive(:message)

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

* 3 conversions
    from: Klass.any_instance.should_receive(:message)
      to: expect_any_instance_of(Klass).to receive(:message)

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

* 3 conversions
    from: pending 'is an example' { }
      to: skip 'is an example' { }

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

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

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

For more details: https://github.com/yujinakayama/transpec#supported-conversions