* Update for beta 7.

* Update Jazzy docs.

* Connect events to cURL description.

* Clean up and add more tests.

* Add DataEncoding and KeyEncoding. (#2858)

* Appending response serializer now resumes request if finished to handle races (#2862)

* aquiring -> acquiring

* didnt -> didn't

* occured -> occurred

* reponse -> response

* recieves -> receives

* recieve -> receive

* Reverted changes in docs

* Rename internal Result extensions.

* Update Alamofire docs.

* Update AFError docs.

* Cleanup HTTPHeaders.

* ParameterEncoder doc update.

* Whitespace cleanup.

* Update all Request docs, update Destination and cancel handling.

* Refactor download cancellation for common method.

* Start Session documentation.

* Update Gems.

* Update Session queue ids.

* Continue Session docs.

* DataRequest and DownloadRequest docs.

* Add default value note.

* Continue request docs.

* Whitespace cleanup.

* Finish Session docs, update AF docs.

* Small doc cleanup.

* SessionDelegate cleanup.

* Update docs for NetworkReachabilityManager.

* Update docs for MultipartFormData.

* Remove OS check, as compiler warns.

* Update RedirectHandler docs.

* Update RequestInterceptor docs.

* Update ServerTrustEvaluation docs.

* ResponseSerialization doc updates.

* Misc. cleanup.

* Update Gems.

* Add docs for missed public API.

* Make cancel() on DownloadRequest not produce resumeData.

* Fix download events.

* Add missing fileManager parameter.

* Make event tests more explicit.

* Whitespace cleanup.

* ParameterEncoding -> ParameterEncoder

* Fix typo.

* Updates for PR feedback.

* Final PR fixes.

* Add extra line before Returns doc.

* Clean up download cancellation.

As recommended by Apple at WWDC, using os_unfair_lock by reference will lead to a crash rate of up to 1%.

* Added date encoding strategies to `URLEncodedFormEncoder`

* Documentation fixes and error handling in `URLEncodedFormEncoder.DateEncoding`

* Added release notes to the CHANGELOG and bumped the version to 5.0.0-beta.6

* Regenerated jazzy docs for the 5.0.0-beta.6 release

re #2793 #2794

It appears that iTMSTransporter only allows a CFBundleShortVersionString to have at most three non-negative integers. See PR #2799 for more info.

ERROR ITMS-90060: "This bundle is invalid. The value for key CFBundleShortVersionString '5.0.0.beta.5' in the Info.plist file must be a period-separated list of at most three non-negative integers. Please find more information about CFBundleShortVersionString at https://developer.apple.com/documentation/bundleresources/information_property_list/cfbundleshortversionstring"
The call to the iTMSTransporter completed with a non-zero exit status: 1. This indicates a failure.

* Refactor DownloadRequest.cancel to match other requests.

* Add missing DownloadTask eventMonitor calls.

* Fix metrics vs. completion race, duplicate task events.

* Add general tests for all events.

* Update naming of RequestTaskMap methods.

* Switch on the tuple elements separately.

* Update CHANGELOG and version for beta 5.

* Update Gems.

* Update Jazzy docs.

* OS X -> macOS in README.

* Added Notification suffix to Request notification names

* Added notification support for request task events

* Updated did complete task key to match property name

* Moved MultipartUpload to internal type and threshold to MultipartFormData

* Made MultipartUpload final class to prevent subclassing

* Converted the SessionStateProvider protocol to internal type

* Renamed the SessionStateProvider file to SessionDelegate

* Update Request event management and add tests.

* DRY up state switch.

* Add additional test for actions from multiple queues.

* Updated the Alamofire Xcode project project format to Xcode 10.0 compatible

* Updated the iOS Example Xcode project to fix Xcode 10.2 warnings

* Fixed compile error in example app due to result API changes

* Fixed localization issue in project picked up by Xcode

* Fixed issue when cancelling request inside response serializer completion

* Pulled execution of response serializer completions outside of mutableState lock

* Added release notes to the CHANGELOG and bumped version to 5.0.0-beta.4

* Generated jazzy docs for 5.0.0-beta.4 release

* Fix emptyResponseAllowed logic.

* Update empty response logic and test.

* Whitespace cleanup.

* Add doc comment for URLRequest extension.

* Make all Results into AFResults for consistency.

* Updated Xcode project, source code, SPM package, and podspec to Swift 5

* Fixed up test suite failures due to behavioral changes in Swift 5

* Updated Travis-CI yml file to build against Xcode 10.2

* [WIP] First stab at retry support for response serialization

* Refactored response serialization retry logic to always run all serializers

* Refactored RequestDelegate retry APIs so retry calls are explicit

* Removed need for response serialzer index for iteration

* Fixed issue where next serializer was being triggered during retry

* Modified request reset to be called when retrying in case of adapt errors

* Added tests around response serializer retry logic and adaptation failures

* Applied same queue cleanup to non-serialized response APIs

* Moved response serializer APIs to be internal instead of open

* Refactored retry APIs, simplifying guards, and removed RetryResult optional

* Replaced another conditional with a guard in retry logic