Added rhythmbox radio support to unity music lens

Just got it merged (and will be freshly available in Unity 6.0 coming soon in quantal)! I spent few hours last week to add rhythmbox radios (and writing unit tests) for the music lens. It's been a long time I didn't write some serious vala (I guess last time was for unity's Alt+F2). I confirm it's still not my favorite langage ;) Coming back to the radios, they will now show as the last row (after tracks, albums and eventually online purchase ones), and they respect (if the metadata are provided in rhythmbox) to every usual music lens filters.

New, shiny, Unity 5.6 released!

Phew! it's been a long road to release the next unity, but I'm more than happy to finally announce therelease of 5.6. Unity components (dee, libunity, bamf, lenses, nux) and unity itself, plus some compiz snapshots (post are part of this release. The packages are currently building on the official builders and should be soon available to you. No particular new feature apart from better ibus support are part of it, plus a tons of bug fixes and some miscelleanous improvements: - Daniel van Vungt landed a patch in compiz that enhances its performance for more than 51%!

Some unity configuration in gnome-control-center.

Just finished some hacking for implementing some unity configuration options that are blessed by the design team, as shown in this official specification. It contains as well other ui tweaks. You can notice in particular the "Restore defaults" options that work on each tabs and restore every page's defaults. Those options are impacting both unity and unity-2d. This gave particular challenges as their features don't align (for instance, we don't show the "