Automated g4 rollback of changelist 81719124.

*** Reason for rollback ***

Breaks interop tests

*** Original change description ***

Advertise h2-16, h2-15, h2-14, and accept any of them.

***
	Change on 2014/12/09 by ctiller <ctiller@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=81723283