Prepare release 1.0.3

Author: BillCarsonFr

CHANGES.md

@@ -1,24 +1,12 @@
-Changes in Element 1.0.3 (2020-XX-XX)
+Changes in Element 1.0.3 (2020-07-31)
 ===================================================
 
 Features ✨:
  - Support server admin option to disable E2EE for DMs / private rooms [users can still enable] (#1794)
 
-Improvements 🙌:
- -
-
 Bugfix 🐛:
  - Crash reported on playstore for HomeActivity launch (151 reports)
 
-SDK API changes ⚠️:
- -
-
-Build 🧱:
- -
-
-Other changes:
- -
-
 Changes in Element 1.0.2 (2020-07-29)
 ===================================================