SERVER-12274 bugfix append wc info to GLE, more wc error codes
re-org structure and catalog directories part 2
SERVER-5470 updated plan cache commands per updated spec
SERVER-11643: remove some nsdetails calls for catalog versions
SERVER-11706 fix replicated convertToCapped w/index builds
SERVER-10793 always step down when another primary is seen
SERVER-12274 use new code for wmode tests
SERVER-11875 Convert remaining internal writes to use write commands
SERVER-11875 Make sure write concern is set before getting the value