SERVER-13816 Temporarily disable balancer in auto2.js
SERVER-13582 another attempt to fix server6733.js
BUMP 2.7.0
post 2.7.0
SERVER-13795 rename test binary to dbtest
SERVER-13797 Remove more usages of Client::getContext

This change removes additional usages of Client::getContext and replaces
them with passing the database directly.
SERVER-13820 prevent updateUpstream from using a null connection
SERVER-13817 removing GhostSync
SERVER-13821 privatize SyncSourceFeedback's resetConnection()
SERVER-13823 remove magic from RSBase
more rollback4.js debuggery
SERVER-13638: remove NamespaceDetails from record store entirely
SERVER-13639: make Extent only have read methods
SERVER-13639: make Extent a Struct
SERVER-13638: remove system flags from NamespaceDetails
SERVER-13639: clean up extent.* includes
SERVER-13639: add ExtentManager interface
SERVER-13639: small changes to extent code
SERVER-13795 rename test binary to dbtest

Add dbtest to gitignore
SERVER-11997 Make user cache invalidation finer grained