SERVER-11280 fix detecting downed replica nodes to check against a copy of the member with up to date lastHeartbeatRecv

also pass node id as well as node name in the heartbeat
SERVER-11144 Make the setParameter option a StringMap type
SERVER-10608 added test cases for exists operator
SERVER-11679 extend query planner test for verifying filters

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
SERVER-10758 Strict Epoch comparison

Set epoch correctly when shard does not have a chunk.
SERVER-11867 Do not use NumberLong constructor in JS JSON output mode
SERVER-11758 prevent notifier thread from aborting when ensureMe fails
Add basic jstest for user defined roles
Rename mongoDumpGlobalParams.outputFile to mongoDumpGlobalParams.outputDirectory
SERVER-10026 git rid of $and match expressions with a single child

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
SERVER-11766 Use "enterprise" instead of "subscription" in release archive filenames
SERVER-11769 Only remove mongosniff when generating packages if it's there