Remove note about compact linker warning.

Prepare 5.0.3 (Alamofire#3111)

* Version to 5.0.3.

* Update Jazzy docs.

Prepare 5.0.2 (Alamofire#3078)

* Version to 5.0.2.

* Update Jazzy docs.

Prepare 5.0.1 Release (Alamofire#3076)

* Version to 5.0.1.

* Update Jazzy docs.

Prepare 5.0 Release! (Alamofire#3064)

* Version to 5.0.

* Update Jazzy docs.

* Test stability.

Prepare 5.0.0-rc.3 (Alamofire#2988)

* Version to 5.0.0-rc.3.

* Update Jazzy docs.

Prepare 4.9.1 (Alamofire#2987)

* Version to 4.9.1, update CHANGELOG.

* Update Jazzy docs.

Prepare RC2. (Alamofire#2940)

* Version to RC2.

* Update Jazzy docs.

Prepare rc1 (Alamofire#2934)

* Update version.

* Update README.

* Add version API.

* Update Gems.

* Update Jazzy docs.

* Update formatting.

Add v5 package manifest.