Finish implementing workload E
Remove unused variable from replication_manager
Merge branch 'master' of git://github.com/rescrv/HyperDex
Changed how a search range is constructed for the ycsb test

Specifying a range predicate using a Vector -- or any List
derived instance -- of size 2 has been deprecated to allow
for predicate List's.

Signed-off-by: Nick Tolomiczenko <nick.tolomiczenko@gmail.com>