Closing and reopen comport can crash pimatic

[Icesory]

On raspberry it is possible that the closing and reopen of the com port can crash pimatic or dont open the port.

Somtimes only a

Error: Cannot open /dev/ttUSB0

In this case pimatic kepts running.

But it can also crash with the following error

Assertion failed: (loop->watchers[w->fd] == w), function uv__io_stop, file ../deps/uv/src/unix/core.c, line 864.

This can be an failure in the serialport.
serialport/node-serialport#660

https://dl.dropboxusercontent.com/u/72185313/arduin-updater-neues-release-3.jpg

@sweetpi @mwittig

[sweetpi]

With wich serialport version did you test?

[Icesory]

Homeduino use Serialport 1.4.10
Avrgirl-Arduino use Serialport 2.0.5

I will try to run Homeduino with 2.0.5