Add test for ubuntu 16.04
Add test for ubuntu 16.04

This only add the bootstrap tests. We could add more tests but we should probably rather just update the 15.10 VMs to run Ubuntu 16.04.

Tracking issue #2741.

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PiperOrigin-RevId: 151299465
MOS_MIGRATED_REVID=151299465

cushon/bazel,ulfjack/bazel,twitter-forks/bazel,ulfjack/bazel,meteorcloudy/bazel,dslomov/bazel,safarmer/bazel,dslomov/bazel,bazelbuild/bazel,werkt/bazel,juhalindfors/bazel-patches,variac/bazel,katre/bazel,meteorcloudy/bazel,ulfjack/bazel,safarmer/bazel,ButterflyNetwork/bazel,davidzchen/bazel,davidzchen/bazel,spxtr/bazel,dslomov/bazel,davidzchen/bazel,katre/bazel,ulfjack/bazel,spxtr/bazel,werkt/bazel,meteorcloudy/bazel,twitter-forks/bazel,spxtr/bazel,meteorcloudy/bazel,aehlig/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,cushon/bazel,akira-baruah/bazel,variac/bazel,juhalindfors/bazel-patches,dslomov/bazel,werkt/bazel,safarmer/bazel,safarmer/bazel,dslomov/bazel,werkt/bazel,davidzchen/bazel,dslomov/bazel-windows,snnn/bazel,twitter-forks/bazel,ulfjack/bazel,variac/bazel,ButterflyNetwork/bazel,perezd/bazel,werkt/bazel,variac/bazel,bazelbuild/bazel,meteorcloudy/bazel,aehlig/bazel,ButterflyNetwork/bazel,perezd/bazel,aehlig/bazel,ulfjack/bazel,twitter-forks/bazel,akira-baruah/bazel,bazelbuild/bazel,snnn/bazel,dslomov/bazel,dslomov/bazel-windows,akira-baruah/bazel,meteorcloudy/bazel,katre/bazel,damienmg/bazel,spxtr/bazel,ButterflyNetwork/bazel,aehlig/bazel,damienmg/bazel,dslomov/bazel-windows,snnn/bazel,cushon/bazel,meteorcloudy/bazel,snnn/bazel,davidzchen/bazel,dropbox/bazel,dslomov/bazel-windows,damienmg/bazel,juhalindfors/bazel-patches,katre/bazel,dropbox/bazel,davidzchen/bazel,katre/bazel,ulfjack/bazel,damienmg/bazel,damienmg/bazel,dropbox/bazel,cushon/bazel,perezd/bazel,snnn/bazel,aehlig/bazel,dropbox/bazel,davidzchen/bazel,variac/bazel,twitter-forks/bazel,variac/bazel,perezd/bazel,cushon/bazel,spxtr/bazel,aehlig/bazel,dslomov/bazel,akira-baruah/bazel,juhalindfors/bazel-patches,dropbox/bazel,spxtr/bazel,akira-baruah/bazel,dslomov/bazel-windows,ButterflyNetwork/bazel,bazelbuild/bazel,akira-baruah/bazel,perezd/bazel,dslomov/bazel-windows,juhalindfors/bazel-patches,katre/bazel,perezd/bazel,cushon/bazel,twitter-forks/bazel,damienmg/bazel,spxtr/bazel,bazelbuild/bazel,snnn/bazel,snnn/bazel,variac/bazel,safarmer/bazel,werkt/bazel,damienmg/bazel,juhalindfors/bazel-patches,perezd/bazel,juhalindfors/bazel-patches,aehlig/bazel,safarmer/bazel,dropbox/bazel