Move to using postgresql
Move to using postgresql

- Need to write a shell script to automate db install
- For now:
   - https://gist.github.com/sirodoht/f598d14e9644e2d3909629a41e3522ad
   - https://www.digitalocean.com/community/tutorials/how-to-use-postgresql-with-your-django-application-on-ubuntu-14-04
inventree/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree