Issue #2732: bump version to 4.4 and update changelog

Author: severinrudie

CHANGELOG.md

@@ -8,6 +8,8 @@ It diverges in the following ways:
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html) for bug fix releases.
 
 ## Unreleased
+
+## 4.4 - 2019-09-09
 ### Added
 - (disabled by default) Receive tabs onboarding screen (#2495)
 

app/build.gradle

@@ -25,7 +25,7 @@ android {
         targetSdkVersion 28
         versionCode 11 // This versionCode is "frozen" for local builds. For "release" builds we
         // override this with a generated versionCode at build time.
-        versionName "4.4-LAT2"
+        versionName "4.4"
         testInstrumentationRunner "org.mozilla.tv.firefox.FirefoxOnDeviceTestRunner"
         testInstrumentationRunnerArguments clearPackageData: 'true'