Danling

Commits
- 35d3650: support comparing NestedTensor with int and floats (Zhiyuan Chen)
- 0218f12: support mask value in constructing NestedTensor (Zhiyuan Chen)
- 55fb0cf: fix size of NestedTensor when ndim=0 (Zhiyuan Chen)
- ea55b48: improve torch function handle (Zhiyuan Chen)
- ec7550a: deprecate registry (Zhiyuan Chen)
- e99b66d: add averagemeters (Zhiyuan Chen)
- 5153080: add repr for NestedTensor (Zhiyuan Chen)
- bbb7fe0: fix NestedTensor attributes lost in op (Zhiyuan Chen)

Commits
- 685c5d5: support padding value in constructing NestedTensor (Zhiyuan Chen)

Commits
- 00ca6bb: add autocast to TorchRunner (Zhiyuan Chen)

Commits
- be89036: fix lint (Zhiyuan Chen)
- 2340932: fix id/uuid consistency in distributed training (Zhiyuan Chen)

Commits
- 03d8bde: convert numpy int/float to int/float when calling dict (Zhiyuan Chen)
- a696a03: add MLP (Zhiyuan Chen)
- 17d712f: add time to Runner.id to improve uniqueness (Zhiyuan Chen)

Commits
- 97e40b8: catch tensorboard exception (Zhiyuan Chen)
- aabc273: make time part of id (Zhiyuan Chen)