Reviewers for GEODE-7971 Gateway sender to deliver transaction events atomically to gateway receivers

[Alberto Gomez]

Hi,

Could I ask for a review on https://github.com/apache/geode/pull/4928?

This PR is about "Gateway sender to deliver transaction events atomically to 
gateway receivers" (https://issues.apache.org/jira/browse/GEODE-7971).


Thanks,

/Alberto G.