SERVER-13635: move journal test to mmapv1 suite
Revert "SERVER-15375 remove initShardVersion"

This reverts commit 42d276dace045fe888cdb45f00dc0bf97fa13bd5.

Need to handle non-versioned cases for GLE and auditing
SERVER-15535 Move where we check for secondaries being ahead of the primary
SERVER-15594 Make readIndex.js test storage engine independent.
SERVER-15535 Refactor jstests/replsets/rollback.js to use bridging.
SERVER-15535 Eliminate jstests/replsets/sync1.js, whose functionality is covered elsewhere.
SERVER-15527 Explain cleanup: use getPlanSummary/indexName helpers

No functional changes.
SERVER-15227 Fix uninitialized PlanSummaryStats member
SERVER-15527 Always collect opdebug stats for queries
SERVER-15535 Do not step down on reconfig if you remain electable.

If someone else ought to be elected, or you cannot see the majority, you will step
down soon enough, due to heart beats.
SERVER-14875 explain helpers for the shell
Merge remote-tracking branch 'upstream/master'