update version and changelog.md

addon.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <addon id="script.xbmcbackup"
-    name="Backup" version="1.6.7" provider-name="robweber">
+    name="Backup" version="1.6.8~beta1" provider-name="robweber">
   <requires>
     <import addon="xbmc.python" version="3.0.0"/>
     <import addon="script.module.dateutil" version="2.8.0" />
@@ -90,10 +90,8 @@
 		<screenshot>resources/images/screenshot3.jpg</screenshot>
 		<screenshot>resources/images/screenshot4.jpg</screenshot>
     </assets>
-    <news>Version 1.6.7
- - fixed issue with RunScript not launching Advanced Editor in some cases
- - added qr code for Dropbox setup
- - fixed error on advanced settings restore
+    <news>Version 1.6.8
+Fix lang file "mgstr" value
 </news>
   </extension>
 </addon>