Fix threading for register for idle time#2073

Merged

KevinRansom merged 2 commits intodotnet:masterfrom KevinRansom:RegisterForIdleTime

Dec 22, 2016

+26-19

Commits on Dec 21, 2016

Make ProjectSystem.RegisterForIdleTime threadsafe
KevinRansom
committed

Commits on Dec 22, 2016

Better --- simpler fix
KevinRansom
committed