Preference to use MongoClient instead of Connection class
Merge remote-tracking branch 'mongodb/master'
Update source/administration/operational-segregation.txt
Update source/core/sharded-clusters.txt
Update source/reference/replica-configuration.txt
merge: typo correction
merge: minor correction
c/map/reduce
fix: rst for include directive
wiki migration cleanup: change references from :wiki: to correct links
Fix links & sphinx command
minor cleanup
DOCS-1110 typo