Updating submodules
Updating submodules

Summary:
GitHub commits:

https://github.com/facebook/fb303/commit/67139eb10e600fa223e10cdc2e22fb21ae41e20a
https://github.com/facebook/fbthrift/commit/0e7c3271c14df249f22713bcf11f0a09358bb858
https://github.com/facebook/fbzmq/commit/c41ef90dee90d38ce21df8ab908044c45ba789e1
https://github.com/facebook/rocksdb/commit/272ce445d67fa71c3da869e6ce9637c2b830e4ee
https://github.com/facebook/watchman/commit/9dbce33843c10b4c0b9e2d5ff7537228886b74ae
https://github.com/facebookexperimental/rust-shed/commit/627950e2279f478e5d46cb7ba751d949715064e6
https://github.com/facebookexternal/stl_tasks/commit/0efca4624601a96df62fa186fc0d2fea1d941676
https://github.com/facebookincubator/velox/commit/a3aeceaef7f5f6c5f097fc8c9c3af5c3252f348e

Reviewed By: jurajh-fb

fbshipit-source-id: 18a896c205c0b274e5a9dd2bf8694949205254fe

facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro