SERVER-14728 Shard depends on string comparison of replica set connection string
SERVER-14448 Fix Date handling in replSetGetStatus
SERVER-14442 Fix handling of "self" when preparing replSetUpdatePosition commands
Revert "SERVER-14728 Shard depends on string comparison of replica set connection string"

This reverts commit b3787777795434829a3b512c06b5a0a508d81467.
Merge remote-tracking branch 'upstream/master'