Change stream enhancements#326

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rwynn wants to merge 16 commits intoglobalsign:developmentfrom

rwynn:change-stream-rollup

Commits on Jan 23, 2019

cleanup logic to be more coherent for all 3 change domains
rwynn
committed

Commits on Jan 30, 2019

Merge branch 'development' into change-stream-rollup
eminano
authored
add missing options check and set for new pipe
rwynn
committed
Merge branch 'change-stream-rollup' of https://github.com/rwynn/mgo into change-stream-rollup
rwynn
committed

Commits on Feb 3, 2019

Reuse cursor if no results found but must reset the error
rwynn
committed