Updated Changelog and ready for v1.2.2

app/src/main/res/xml/changelog_master.xml

 <?xml version="1.0" encoding="utf-8"?>
 <changelog>
   <release version="1.2.2" versioncode="21" >
-      <change>Removed battery optimization promt for updates</change>
+      <change>Removed battery optimization promt on updates</change>
+      <change>Corrected links in description in F-droid</change>
+      <change>Added Sr and De translations of the description in F-Droid</change>
+      <change>Spanish en German translation updated</change>
   </release>
     <release version="1.2.1" versioncode="20" >
         <change>Updated the need more help links to the actual How to's</change>