[telegram-desktop/f27] (9 commits) ...Updated to version 1.2.14.

Summary of changes: b71f51b... Rebuilt for ffmpeg-3.5 git (*) 14fd9cf... Updated to version 1.2.8 (alpha). Do not build for stable F (*) e912978... - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass (*) c0d58d0... - Rebuilt for new ffmpeg snapshot (*) c562a45... Updated to 1.2.10 alpha. DO NOT BUILD FOR STABLE FEDORA REL (*) 5deaebb... Fixed build under Rawhide. (*) 2c2b143... Updated to 1.2.12 (alpha). DO NOT BUILD FOR STABLE FEDORA R (*) 717d807... Updated to 1.2.13 (alpha). DO NOT BUILD FOR STABLE FEDORA R (*) dc87cd9... Updated to version 1.2.14. (*) (*) This commit already existed in another branch; no separate mail sent