Rust release milestone predictions

brson May 22, 2017, 11:33pm 49

I did a thorough update of the predictions, bumped lots of stuff, added lots of stuff.

Topic		Replies	Views
Concerned about Rust 2018 stability	16	4942	July 13, 2018
Rust 2018 All Hands!	37	11817	April 1, 2018
Survey of unstable standard library features libs	11	8385	March 25, 2018
Survey of "High Impact" Features	25	3188	May 4, 2021
Announcing Rust 2018 Preview 2! announcements	27	14911	August 22, 2018