Updating submodules
Updating submodules

Summary:
GitHub commits:

https://github.com/facebook/fb303/commit/ad8712f31b6de4a77c4393fb7ec3616170bf6aee
https://github.com/facebook/fbthrift/commit/2276e198010862a70200b1da55808a2b3500d84a
https://github.com/facebook/fbzmq/commit/d2539ae8fb7ca15ea957aa91b8ac61e674079e94
https://github.com/facebook/watchman/commit/d9d4d912bcf891b612718084537b4e883aa720aa
https://github.com/facebookexperimental/rust-shed/commit/263644eda079d372001d87624938921d6fc4bcb7
https://github.com/facebookexternal/stl_tasks/commit/f46139d9ee288cbecabf46b746fd5cabf57dfe97
https://github.com/facebookincubator/velox/commit/dd3337bca5129522f42a99b8a6f6d146574b5084
https://github.com/facebookresearch/recipes/commit/a4cb280b9fd83b9a70cf3ed9a807595c72081fdf

Reviewed By: wittgenst

fbshipit-source-id: 652052c434bed75837e9da9f5fcc4a553c58425e

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