Printing the results of the dev dependency checks at rake time.
Adding support for CocoaPods >= 0.34

[Fixes #118]
Updating changelog.
Fixing tests broken by 3d7031a.

Related to #118. This commit cleans up how we're reading the plist.
Convert specs to RSpec 3.1.5 syntax with Transpec

[#79898106]

This conversion is done by Transpec 2.3.7 with the following command:
    transpec --convert stub_with_hash

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

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

* 53 conversions
    from: obj.should_receive(:message)
      to: expect(obj).to receive(:message)

* 37 conversions
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

* 24 conversions
    from: obj.stub(:message => value)
      to: allow(obj).to receive_messages(:message => value)

* 22 conversions
    from: obj.should_not
      to: expect(obj).not_to

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

* 8 conversions
    from: =~ [1, 2]
      to: match_array([1, 2])

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

* 5 conversions
    from: obj.stub_chain(:message1, :message2)
      to: allow(obj).to receive_message_chain(:message1, :message2)

* 3 conversions
    from: obj.should_not_receive(:message)
      to: expect(obj).not_to receive(:message)

* 1 conversion
    from: =~ /pattern/
      to: match(/pattern/)

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Convert features to RSpec 3 syntax.

[#79898106]