I haven’t tested skeletal meshes specifically, but I’ve had 0 issues with exporting FBX from Blender. An Epic dev from another forum even specifically said that you can use Blender to get stuff into the engine. It’s too bad that the Maya plugin is exclusive to it, but it’s not required, and with the engine now practically open source, and the ease of making Blender plugins, there’s hope for even more Blender support in the future. 
Edit: Just tested importing skeletal meshes and animation from Blender, no issues at all. Granted, I’m still on the beta, but I can’t imagine that anything would have changed in this department from my version to the main version.