error condition nit-picking and tab cleanup
Update README.md

added live sandbox information

removed drone.io borked badge
Dockerfile for deploying Leshan with docker
fix regression on observation refactoring.
Adding COAPIFACE and COAPSIFACE env vars

To be used for configuring the interface to be bound.
get last runnable binary
Remove obsolete class
Merging latest scandium changes
Security registry and secure endpoint
API for security
New security screen
Add missing licence header
Fix error code if invalid request content
Fix security infos
Another batch of forgotten licence headers..
Fixed update registration with empty content
API and UI to remove security info by endpoint
Display error messages
File persistence for security infos.
Fix default file name