[omemo] Update manifest.ini & CHANGELOG

omemo/CHANGELOG

+2.6.72 / 2020-01-17
+- Add back 12 byte IV read support for aesgcm links
+
 2.6.71 / 2019-12-29
 - Refactor file downloads
 

omemo/manifest.ini

 [info]
 name: OMEMO
 short_name: omemo
-version: 2.6.71
+version: 2.6.72
 description: OMEMO is an XMPP Extension Protocol (XEP) for secure multi-client end-to-end encryption based on Axolotl and PEP. You need to install some dependencies, detailed in the installation instructions for your system in the GitHub wiki.
 authors: Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
  Daniel Gultsch <daniel@gultsch.de>