SERVER-12392: add invariant around DummyRunner
SERVER-12486 added shell helpers for plan cache commands
SERVER-10324 Allow modules to add files to different archive subdirectories

This CR is 1 of 2 covering the open source server repo component
of https://jira.mongodb.org/browse/SERVER-10324. It supplants
http://codereview.10gen.com/4892644241047552/
increase buildlogger send interval to 10 seconds
Merge remote-tracking branch 'upstream/master'