prepare release 0.18.0

CHANGES.md

@@ -1,9 +1,6 @@
-Changes in RiotX 0.18.0 (2020-XX-XX)
+Changes in RiotX 0.18.0 (2020-03-11)
 ===================================================
 
-Features ✨:
- -
-
 Improvements 🙌:
  - Share image and other media from e2e rooms (#677)
  - Add support for `/plain` command (#12)
@@ -18,9 +15,6 @@ Bugfix 🐛:
  - Set "image/jpeg" as MIME type of images instead of "image/jpg" (#1075)
  - Self verification via QR code is failing (#1130)
 
-Translations 🗣:
- -
-
 SDK API changes ⚠️:
  - PushRuleService.getPushRules() now returns a RuleSet. Use getAllRules() on this object to get all the rules.