51.alpha
========
  [Andre K.; Translation/de#88]
* Fix autorun notification for connected USB drives Sebastian K.; !4187]
* Fix reapplying layout on `xkb-options` changes [Sebastian K.; !4205]
* Expose slow-down-factor in looking glass [Florian; !4211]
* Improve app grid accessibility [Sergio; !4110, !4111]
* Support touch scrolling in ScrollView [Lorenzo; !4138]
* Use custom sound effects instead of sound theme [Jakub; !4154]
* Use more readable St.ButtonMask values [Florian; !4224]
* Save and restore monitor brightness [Sebastian W.; !4006]
* Support elogind as libsystemd provider [Swagtoy; !4233]
* Prevent workspaces from being removed mid-animation [Tony; !4014]
* Support version 2 of text_input_v3 protocol [Carlos; !4008]
* Improve UI for conflicting sessions on login screen [Joan; !4081]
* Announce search result description to screen readers [Lukáš; !4251]
* Improve animation when expanding app grid label [Daniel; !4247]
* Replace GLSLEffect with ClutterShaderEffect [Bilal; !4241]
* Fix spacing in lock screen media notifications [Florian; !4217]
* Add support for start/end text-align [Florian; !4204]
* Pass params object to popupMenu open()/close() methods [Florian; !4240]
* Split extensions-app into its own repository [Florian; !4267]
* Plugged leak [Alessandro; !4258]
* Misc. bug fixes and cleanups [Bilal, fthx, Marco, Florian, Bilal,
  Sebastian K., Liam, Monster, Achill, Andre N., Alessandro; !4176, !4077,
  !4183, !4184, !4180, !4135, !4194, !4197, !4201, !4198, !4210, !4220, !4195,
  !3255, !3257, !4163, !4222, !4226, !4228, !4221, !4234, !4243, !4250, !4253,
  !4260, !4133, !4266]

Contributors:
  Vicente Bertolotti, Alessandro Bono, Tony Chen, Sergio Costas Rodriguez,
  Milan Crha, Bilal Elmoussaoui, Herman Fries, fthx, Carlos Garnacho,
  Mikhail Gavrilov, Achill Gilgenast, Lorenzo Ianotto, Saikeo Kavhanxay,
  Sebastian Keller, Ramez Medhat, Monster, Florian Müllner, Andre Nijman,
  Liam Rust, Jakub Steiner, Swagtoy, Joan Torres Lopez,
  Marco Trevisan (Treviño), Lukáš Tyrychtr, Daniel van Vugt, Sebastian Wick
  Flynn Peck [kw], Vasil Pupkin [be], Yuri Chornoivan [uk], Martin [sl],
  Emin Tufan Çetin [tr], Antonio Marin [ro], Kristjan ESPERANTO [de],
  Ryo Nakano [ja], Davide Ferracin [it], Artur S0 [ru], Cas Pascal [vi],
  Victoria Niedzielska [pl], Luiggi R. Cardoso [pt_BR]