merge: DOCS-786 updates to fedora install instructions
DOCS-782 update writeBacksQueued to reflect change from Boolean result
DOCS-686 port mapReduce page
DOCS-683 remove word atomic if before the word operations
Update source/reference/replica-configuration.txt

Changed rs.conf() output to match example
Update source/reference/command/copydb.txt

Fixed typo (remove_db_name > remote_db_name)
DOCS-254 document explain output
Minor grammar fixed in database-references.txt

Using logical quotes.
fix formatting glitch and the affect of the doc.
reprhasing of command introduction per reqest from @erh
minor: typo correction
build: refactor makefile generator library for better clarity and testing
minor: correcting cross reference error
DOCS-658 and DOCS-684 implement changes related to Jeff's comments
DOCS-792 correcting issue about rs.conf array indexes.
Update source/tutorial/deploy-geographically-distributed-replica-set.txt

Fixed spelling.
DOCS-658 and DOCS-684 remove extraneous specification from headings
DOCS-792: additional clarifications to replica-set reconfiguration text
minor: fix markup for sphinx directive markup
DOCS-790 updates and clarification for the ensureIndex reference page