Found by valgrind.

Fix HIL link reconnect issues due to missing threading flag usage, warn user about missing config and take him to config view if necessary

Fix HIL link reconnect issues due to missing threading flag usage, warn user about missing config and take him to config view if necessary

This way the delete happens on the right thread.

Current version was not as clear as it could be.

Replaced with only 1 output message with the result of the first serial port scan.