Use maven-enforcer-plugin instead of <prerequisites> to enforce Maven version.
Use maven-enforcer-plugin instead of <prerequisites> to enforce Maven version.

<prerequisites> are intended to be used only by maven-plugin projects.

	Change on 2017/09/27 by idv <idv@google.com>

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=170278228

GoogleCloudDataproc/hadoop-connectors,GoogleCloudDataproc/hadoop-connectors