Fix for 52c2f915.

Update to new CLIntegracon Patch

[CHANGELOG] Add changlog entry for sanitization of special characters in build configs in target environment header

CHANGELOG entry for https://github.com/CocoaPods/CocoaPods/pull/2532.

Spec for changes introduced in https://github.com/CocoaPods/CocoaPods/pull/2532

Configuration specific preprocessor definition can generate a lot of warning

Use a var instead, as per @alloy

Especially warn a user in the case of a RC version.

Addresses a regression introduced in https://github.com/CocoaPods/CocoaPods/pull/2601

[TargetIntegrator] Ensures that the user project is not saved when there are no user targets integrated.

[Resolver] Added tests, notice if the required version exists in multiple sources (CocoaPods/CocoaPods#2556)

Fixes https://github.com/CocoaPods/CocoaPods/issues/2591

[TargetIntegrator] Ensures that the user project is not saved when there are no user targets integrated.

[TargetIntegrator] Ensures that the user project is not saved when there are no user targets integrated.

Remove references to Source#data_provider

Closes https://github.com/CocoaPods/CocoaPods/issues/2586.

[Downloader] ensure that a downloader failure results in a DownloaderError so the Downloader can catch it

Helpful for https://github.com/CocoaPods/cocoapods-downloader/pull/36

Modify add_xcode_base_configuration to respect existing base configurations

Thanks @alloy!

Clarify why .git/ is removed from comparison

We have only so much time in a day, it’s time to take stronger stances on support.