config: bump to envoy-api 422332b.#1202

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htuch merged 7 commits intoenvoyproxy:masterfrom

htuch:envoy-api-bump

Jul 7, 2017

Commits on Jul 3, 2017

config: bump to envoy-api 422332b.
htuch
committed

Commits on Jul 5, 2017

Metadata well-known constants and moved utils to a dedicated Metadata class.
htuch
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Force InSequence in multiple request cases in sds_test.cc.
htuch
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