routine update, minimum chrome version = 33
enabling global debugging for this session
initial implementation of serial class
working port handler
todo note
extending support
changing PSP implementation to work with new api
changing spectrum analyzer implementation
working connect, broken quickjoin, double DTR
working stk500 flasher
working avr109 flasher
cleanup
working stm32 flasher
moving background.js to new serial api
extending serial class support
removing global connectionId
updating changelog
reset connectionId after disconnecting
cleanup
custom made frame (fixes chrome33+ no shadow)