* master:
  Release 0.14.0
  [Bundle] Update.
  [Rakefile] Allow to update the changelog during a release.
  [Gemspec] Bump dependency of Xcodeproj.
  [Changelog]
  Update AppleDoc install instructions
  [Rakefile] Fix Travis.
  [Rakefile] Fix Travis.
  [Rakefile] Fix Travis.
  [Specification] Don't include the name of the preferred dependency in to_s.
  [Lockfile] Make path if needed before writing.