Merge branch 'release/4.2.8' into develop
EventEmitter: Use the 'exports' variable as global

Follows-up aba18feb4abb5a2d90947b0d404dc50783593462.

The local 'exports' variable is set to 'this'. Not sure why that was changed.
Swapped tabs for spaces.

Deal with it.

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Bumped version numbers to 4.2.9.
Built v4.2.9.
Merge branch 'release/4.2.9'