[Gemspec] Bump xcodeproj to `~> 0.20.2`
[Gemspec] Bump cocoapods-downloader to `~> 0.8.0`
[Resolver] Fix potential crash due to change in Molinillo
[Bundle] Update to CLIntegracon 0.6.0
[Spec][Integration] Use new setters
Merge pull request #2834 from CocoaPods/clintegracon_update

CLIntegracon update
[Analyzer] Use specific checkout options from lockfile
[Analyzer] Ensure that the right checkout options are used when a downlaod of the Pod already exists
[Bundle] Update Core
[Analyzer] Cleanup and improve tests for lockfile checkout options.
[AnalyzerSpec] Fix spec for lockfile checkout options

Make it more like an environment where the source is already downloaded.
[RuboCop]