use fastest possible flashing speed available

this speed varies on the platform used
speed up bro
improving interval methods in GUI obj
polishing serial backend (needs more work)
polishing flashing protocols
polishing background page
routine update
implemented debug vars for tracking TX/RX

close #4
log time spent hex parsing
implementing custom firmware upload

#3
updating changelog
typo fix
support for new PPM input flags
cleanup flags (rc channel config bugfix)
firmware uploader overhaul
moving css for each tab into separate files
optimizing