Upyloader stop working on serial connection!

[cyberlab2018]

Hello Betaranever, sorry for bothering you again, today try to make the connection via serial port, upyloader stops working.
the connection via wifi works perfectly.
I want to tell you that if I use the previous version to the changes you made in report # 44 if the serial connection works well, apparently those changes affected the serial connection code.
Thanks greetings!

[BetaRavener]

I'm too busy right now, so please use the previous version if you need to have serial working. I've at least looked at the code I was changind in #44, but I can't see anything that would affect Serial. I made modification to class that Serial uses, but these would only show up during file transfer, not when establishing connection. Hopefully I will be able to reproduce and fix it easily.

[BetaRavener]

Closing this as an old one, but it may be that uPyLoader hung when connecting to board where program was running and capturing KeyboardInterupt. This was hopefully solved as part of #48. In case this problem persists, please create a new issue.