Prepare release 1.0.15

CHANGES.md

@@ -1,4 +1,4 @@
-Changes in Element 1.0.15 (2020-XX-XX)
+Changes in Element 1.0.15 (2020-02-03)
 ===================================================
 
 Features ✨:
@@ -19,18 +19,12 @@ Bugfix 🐛:
  - Data for Worker overload (#2721)
  - Fix multiple tasks
 
-Translations 🗣:
- -
-
 SDK API changes ⚠️:
  - Increase targetSdkVersion to 30 (#2600)
 
 Build 🧱:
  - Compile with Android SDK 30 (Android 11)
 
-Test:
- -
-
 Other changes:
  - Update Dagger to 2.31 version so we can use the embedded AssistedInject feature 
 

fastlane/metadata/android/en-US/changelogs/40100150.txt

@@ -0,0 +1,2 @@
+Main changes in this version: Social Login support.
+Full changelog: https://github.com/vector-im/element-android/releases/tag/v1.0.15