51.1
====
* Fix drag&drop between Wayland and Xwayland clients [Alessandro; !5362]
* Update window's monitor after configure [Aleksandr; !5354]
* Use logical normal orientation when resetting panel rotation
  [Ratchanan; !4898]
* Preserve MRU order when windows become sticky [Jon; !5361]
* Allow changing selections with the same serial [Vlad; !5370, !5382]
* Fix applying `workspaces-only-on-primary` after monitor changes
  [liuyingjie; !5254]
* Allow cursor implementations to fall back to Xcursor [Alessandro; !5352]
* Enforce throttling of frame clock updates while power saving [Michel; !5331]
* Misc. bug fixes and cleanups [Sebastian, Marco, Jonas, Carlos, Michel, Erhan;
  !5336, !5332, !5329, !5346, !5349, !5248, !5259, !5365, !5366]

Contributors:
  Alessandro Astone, Erhan Bilgili, Michel Dänzer, Carlos Garnacho, Jon Howell,
  Sebastian Keller, liuyingjie, Aleksandr Mezin, Ratchanan Srirattanamet,
  Marco Trevisan (Treviño), Vlad Zahorodnii, Jonas Ådahl

Translators:
  Kjartan Maraas [nb], Bruce Cowan [en_GB], Hugo Carvalho [pt],
  Efstathios Iosifidis [el]