Update to 1.3.26

Applied patch from https://github.com/DrKLO/Telegram/pull/99 . Thanks.
Added German localization. Thanks to all from
https://github.com/DrKLO/Telegram/pull/129
Experimental audio (will not go to market yet, we will switch to opus
codec)
Improved text drawing perfomance (now Telegram can draw even «War and
Peace» in one message)
Ability to send multiple photos and documents from external apps
Contacts fixes
Memory usage optimizations in network code (receiving data)
Partly switched to native ByteBuffers (decoding received data)
Added support of Telegram API Layer 12
Bug fixes
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Update to 1.3.26
Signal with the version that I have included stuff

- At the moment, just the NotificationLight patch.
  Is there a more or less standard way to add merge information which
  differs from the upstream version? Would be nice to see this somewhere
  in the app