2.2.0 readiness

- Removes empty 2.1.3 stub from CHANGELOG
- Sets date for 2.2.0 in CHANGELOG
- Updates branch aliases:
  - dev-master => 2.2-dev
  - dev-develop => 2.3-dev

Signed-off-by: Maximilian Bösing <2189546+boesing@users.noreply.github.com>

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.2.0 - TBD
+## 2.2.0 - 2020-07-01
 
 ### Added
 
@@ -26,28 +26,6 @@ All notable changes to this project will be documented in this file, in reverse
 
 - Nothing.
 
-## 2.1.3 - TBD
-
-### Added
-
-- Nothing.
-
-### Changed
-
-- Nothing.
-
-### Deprecated
-
-- Nothing.
-
-### Removed
-
-- Nothing.
-
-### Fixed
-
-- Nothing.
-
 ## 2.1.2 - 2019-09-04
 
 ### Added

composer.json

@@ -23,8 +23,8 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.1.x-dev",
-            "dev-develop": "2.2.x-dev"
+            "dev-master": "2.2.x-dev",
+            "dev-develop": "2.3.x-dev"
         },
         "class": "Laminas\\ComponentInstaller\\ComponentInstaller"
     },