Add 'public' as a propagated property for projects

Closes #196

Fix Mimetype Error

For when the mimetype of a file we are serving is unknown

catch Exceptions in method dispatch in api.py

Avatar improvements

closes #59

Improve 401 Error Logging

add advanced datatree search query

Add origin tracking to files

Serve schemas

add new ENV required variable

Add archiving functionality for containers

Fix docker bootstrap example

- Update bootstrap.json to bootstrap-dev.json to reflect new convention.
- Move bootstrap-data.sh to PRE_RUNAS_CMD var to reflect it's need to be run as root due to pip install.