Bump to v0.9.3. (#3125)

# v0.9.3 Release

Known issues
- Short options like `-m` and `-t` do fail in Python 3.8. Use `--model` and `--task`

Breaking Changes
- A number of old MTurk tasks have been archived and removed from the code (#3085)

New Features
- [image] Detectron feature extraction (#3083)
- [data] Natural questions (#3070)
- [data] TaskMaster-2 (#2678)
- [data] New versions of multiwoz (#3072)
- [distributed] Allow non-tcp based distributed setup (#3095)
- [core] Move torch.load/torch.save to PathManager. (#3094, #3077)
- [mturk] New task on static turn annotations (#3053)
- [mturk] New features in human+model annotation (#3006)
- [core] TorchClassifierAgent now prints its number of prameters (#3086)

Doc Changes:
- New Worlds tutorial (#3049)
- Tutorial on using `-t jsonfile` (#3061)
- Better help message for --init-model (#3090)
- Additions to FAQ (#3073)
- Updated model zoo descriptions for BlenderBot (#3096)

Bug Fixes
- Distributed evaluation now writes to world logs earlier (#3122)
- An argument was updated from store_true to bool (#3113)
- Self-chat now fails loudly with unexpected batchsize (#3081)
- Update drqa default tokenizer away from removed (#3069)
- Using wizard of wikipedia in interactive mode downloads data (#3079)

Developer notes:
- New pre-commit git-secrets (#3106)
- Code coverage improvements (#3110, #3091)
- More reliable tests. (#3108, #3097, #3055)
- Mephisto task dependencies have been updates due to security bugs (#3111, #3101, #3104)
- MTurk config folders are exempt from __init__.py requirements (#3105)

parlai/__init__.py

@@ -4,4 +4,4 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
-__version__ = '0.9.2'
+__version__ = '0.9.3'

setup.py

@@ -9,7 +9,7 @@
 
 from setuptools import setup, find_packages
 
-VERSION = '0.9.2'  # if you update, update parlai/__init__.py too!
+VERSION = '0.9.3'  # if you update, update parlai/__init__.py too!
 
 if sys.version_info < (3, 6):
     sys.exit('Sorry, Python >=3.6 is required for ParlAI.')