Wrapping mongod for NUMA machines. Bug 1350337
Added support ro run numactl when needed. Bug 1350337.
Changed numactl preference to boolean. Bug 1350337.
Added recommend change to memory allocation policy. Bug 1350337.
Renamed variables and added changes based on review. Bug 1350337.
Added changes based on review. Bug 1350337.
Added changes based on review. Bug 1350337.
Merge pull request #1054 from anastasiamac/mongo-on-multi-socket-nodes-Bug1350337

Wrapping mongod for NUMA machines. Bug 1350337

Bug https://bugs.launchpad.net/juju-core/+bug/1350337