operational segregation improvements
DOCS-860 add the cursor.addOption method
DOCS-860 addOption method, includes warning
Fixed tiny typo
DOCS-860 cursor.addOption
DOCS-860 addOption shorten example to add only one option
merge: DOCS-860
minor: updates to chunkSize in mongos man page
clarifications of how to resync if stale in a replica set. also removed mention of fsyncLock() as it often blocks the other server so it can only be used with care and thus you would really have to go read the full backups page before using it
Merge branch 'master' of github.com:mongodb/docs
Fix title