Update RLS and Rustfmt#47051

Merged

bors merged 2 commits intorust-lang:masterfrom

Xanewok:update-rls

Dec 29, 2017

Commits on Dec 28, 2017

Update RLS
Xanewok
committed

Commits on Dec 29, 2017

Update rustfmt to 0.3.4
Xanewok
committed