SERVER-12449 check correct container's .end()
SERVER-12648 Add missing dependency on secur32 for windows builds
SERVER-12548 make lockpings query more efficient for large nums of locks
SERVER-12127 ensure write concern option is invalid on all tested configs
Added multiversion testing for dump/restore to direct data files
SERVER-12565: remove old extent freelist implementation and replace with new one
SERVER-12144 better text query plan tests
SERVER-12470 SERVER-12475 SERVER-9532 fix multikey index bounds for compound indices and elemMatch

The new query system multikey index bounds behavior now largely matches that of 2.4.
For a detailed description of the rules for building multikey index bounds, see
the long comment atop db/query/planner_access.h.
Merge remote-tracking branch 'upstream/master'