CocoaPods 1.0 compatibility

[nicholas-lonsinger]

First time contributor checklist

• I have read the README and CONTRIBUTING documents
• I have signed the Contributor Licence Agreement

Contributor checklist

• I'm following the code, UI and style conventions
• My commits are rebased on the latest master branch
• My commits are in nice logical chunks
• My contribution is fully baked and is ready to be merged as is
• I have tested my contribution on these devices:
  • Verification Server not responding, update not a code level change.
• I have made the choice whether I want the BitHub reward or not by omitting or adding the word FREEBIE in my commit message

---

Description

CocoaPods 1.0 has been released and is now installed by default when
running ‘gem install cocoapods’. This updates the PodFile with the new
syntax and includes the changes to dependent files after running ‘pod
install’. FREEBIE

[orta]

I'd recommend switching the Podfile to look like this:

platform :ios, '8.0'

target 'Signal' do
  pod 'SignalServiceKit',           :git => 'https://github.com/WhisperSystems/SignalServiceKit.git'
  pod 'OpenSSL',                    '~> 1.0.208'
  pod 'PastelogKit',                '~> 1.3'
  pod 'FFCircularProgressView',     '~> 0.5'
  pod 'SCWaveformView',             '~> 1.0'
  pod 'DJWActionSheet'

  pod 'JSQMessagesViewController',  :git => 'https://github.com/WhisperSystems/JSQMessagesViewController', :commit => 'e5582fef8a6b3e35f8070361ef37237222da712b'

  target 'SignalTests' do
    inherit! :search_paths
  end
end

It better expresses the semantics of how you want the pods to connect to the Xcode targets, e.g. Signal has them linked, but the tests only know of their existence through the main target.

Plus you can remove the source as it's only using public CocoaPods/Specs pods

[nicholas-lonsinger]

This is a duplicate of PR #1156 which has preferred semantics, so I will close this PR.