SERVER-15859 Disallow w:0 as getLastErrorDefaults
SERVER-15765: keep member state in sync after each heartbeat
SERVER-15665 implement recordLikelyInPhysicalMem
SERVER-15821 Empty host split assertion message in log when maxSize prevents move chunk
SERVER 14425: fix deadlock retry in write commands
SERVER-13635: noPassthroughWithMongod tests made generic
clean up elapsed_tracker library
SERVER-13635: remove check that empty collections are 0 sized on disk
SERVER-13635: kv engine allows implementations to block renames
SERVER-13635: kv engine can pass through flushAllFiles
SERVER-14223: Fix collection stats for insert

Also rewrite top.js to actually test the stats
SERVER-14462 Get rid of Locker::isAtLeastReadLocked
SERVER-15710 Support for leak detection in JS tests fun through smoke.py
SERVER-14462 Clean usages of LockStat from CurOp and Client

Lock statistics will be obtained from the operation context.
SERVER-15838 Make replSetInitiate return InvalidRepliaSetConfig on problems with the config
SERVER-15881 Do not forward slave progress or handshakes when primary.
SERVER-12517 Add listIndexes command

Add comments on command
SERVER-15873 add missing .h declaration for msgassertedNoTrace
SERVER-15873 massert trace not needed when splitAndMove fails
SERVER-15562 Search neighbors for density estimation with 2d index