Make localhost work in callbacks

Comment out localhost from /etc/hosts in docker container

We are using localhost as the nginx service name so we can avoid using http://houston:5000/ in development.

From houston we call the detection API /api/engine/detect/cnn/lightnet/ with a list of image urls and a callback url. In development, "http://localhost/" is the url for the site, but acm wouldn't be able to access a url at localhost unless we remove the definition of localhost from /etc/hosts.

Downgrade MarkupSafe<2.1.0 in requirements/runtime.txt

MarkupSafe 2.1.0 removed a deprecated function soft_unicode which jinja2 imports, causing wildbook-ia to fail:

Traceback (most recent call last):

+------

<!!! EXCEPTION !!!>
Traceback (most recent call last):
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/sentry_sdk/integrations/flask.py", line 29, in <module>
  from flask import (  # type: ignore
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/flask/__init__.py", line 14, in <module>
  from jinja2 import escape
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/jinja2/__init__.py", line 12, in <module>
  from .environment import Environment
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/jinja2/environment.py", line 25, in <module>
  from .defaults import BLOCK_END_STRING
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/jinja2/defaults.py", line 3, in <module>
  from .filters import FILTERS as DEFAULT_FILTERS  # noqa: F401
File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/jinja2/filters.py", line 13, in <module>
  from markupsafe import soft_unicode
ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/markupsafe/__init__.py)

Add python and c back trace if python -m wbia fails in github CI

Change PYTHONFAULTHANDLER=1 to -X faulthandler as PYTHONFAULTHANDLER=1 doesn't seem to print out the python back trace when there's segmentation fault.

If there's an error, run gdb to get a c back trace.
Comment out code to replace localhost with wildbook-ia in callback urls

We are using localhost as the name of the houston nginx service for local development so we need to leave localhost as is.

WildMeOrg / wildbook-ia

Make localhost work in callbacks #207