8.0 release checklist / misc items

[Luke Bakken]

• Check out @bording's project for ideas:
  • #843 (comment)
  • https://github.com/bording/angora
• Check out @mgravell's projects for ideas:
  • https://github.com/mgravell/Pipelines.Sockets.Unofficial
  • https://github.com/StackExchange/StackExchange.Redis
• Consider reducing API surface and maintenance obligation by removing convenience extension methods, and methods like QueueDeclarePassive