Beta next#27387

Merged

brson merged 4 commits intorust-lang:betafrom

brson:beta-next

Jul 30, 2015

Commits on Jul 29, 2015

Bump to .4
brson
committed
Fix typo in stability attribute.

WI-Lee
authored and
brson
committed
std: Fix sub-second Condvar::wait_timeout_ms

alexcrichton
authored and
brson
committed
Feature gate associated type defaults
brson
committed