Release: version 139

Change-Id: I7a5598e597b6a37b1842ab26b8c1fb97d10913ee

ring-android/app/build.gradle

@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 138
-        versionName "20181202"
+        versionCode 139
+        versionName "20181209"
     }
 
     sourceSets {

ring-android/fastlane/metadata/android/en-US/changelogs/139.txt

+• Allow to set conversation color
+• Added contact details view
+• Allow to keep Ring running in background
+• Call: fix controlling ringtone volume
+• SIP: fix profile display
+• SIP: fix sending DTMF
+• Android TV: allow to remove contacts
+• Performance improvements
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