Upgrade netdisco to 1.4.0

[fabaff]

Description:

• Better Yeelight device identification
• Canon printer
• AVM Fritz
• HP Printers

Example entry for configuration.yaml (if applicable):

discovery:

Output:

2018-04-28 22:07:22 INFO (MainThread) [homeassistant.core] Bus:Handling <Event platform_discovered[L]: service=load_platform.sensor, platform=syncthru, discovered=host=192.168.0.25, port=5200, ssdp_description=http://192.168.0.25:5200/Printer.xml, name=Samsung C410 Series (192.168.0.25), model_name=SEC001599EC0D55, model_number=1.0, serial=ZET5B8GD7A01QNL, manufacturer=Samsung Electronics, udn=uuid:16a65700-007c-1000-bb49-001599ec0d55>

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

If the code communicates with devices, web services, or third-party tools:

• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.