If the response is dict or list the API converts it to JSON.
Otherwise it keeps the original.

Now one can use mongodb or sqlalchemy (SqLite, MySQL, PostgreSQL)
Further support for sql databases is not yet supported

classmethods are now check_password and create_hash

If API cannot lookup any users it will set Warning HTTP header
with value 'setup-required'. This tells the front-end to redirect
to /setup page where one can set the admin account.

API now lives in /api folder where it has its module liberouterapi.
This way the root folder is much clearer and free from python files.

HTTP interceptor reacts to HTTP 442 code to redirect to /setup
/setup contains a simple form for initial user registration

For now the FTAS config is hardcoded inside the component. This should
be placed in some sort of config.

This way we can use SafePipe elsewhere and not just in FTAS.

FTAS is now configured via environment config. Options:
* url: simple URL to FTAS instance (e.g. ftas.cesnet.cz)
* fullUrl: complete path to filtering page (without protocol, https is forced here)
* output: must specify which "output" machines to use

Creates an iframe to SecurityCloud GUI instance with optional
setting of looking up by time of an event (clickable through NEMEA Events)

* scgui:
  New module SecurityCloud
  SafePipe as module usage
  FIX: typo
  Convert SafePipe to module

Connects to NERD the same as FTAS or SecurityCloud.

* nerd:
  Introduce module NERD
  Working setup mode