Avoid overlapped per-endpoint heartbeats and heartbeat error reports;…

… we don't want them backing up

1.2.0 release

deploy: 1.2.0-alpha1

Merge branch 'core-rtm' of github.com:StackExchange/StackExchange.Redis

Make sure socket-mode-poll is enabled on .NET !! (r607)

606 deploy

remove PLAT_SAFE_CONTINUATIONS; add ECHO; pakage for Nuget

Merge pull request StackExchange#408 from StackExchange/core-rc2

.Net Core RC2 upgrades to for a 1.604-alpha release

nuspec description got wiped; restore it

1.1.0-alpha2 bundle