SERVER-13799 Increase timeout waiting for user to replicate in sharding/auth.js test
SERVER-13091 fix oplog_entries_from_updates.js to use 2.6 instead of latest
SERVER-10178 Improve debugging output in shell.
SERVER-13686 Do not change the variant directory based on the JS engine being compiled.

Having the variant directory contain the JS engine name can actually increase
the time required to switch JS engines, because the only code that must compile
when you switch is the new JS engine and a small handful of support files.
SERVER-13704 write commands handles ClockSkewException differently from legacy writes
SERVER-13587 ndeleted in system.profile documents reports 1 too few documents removed
SERVER-13040 Fix use of uninitialized value in storageDetails command.