Merge pull request #4 from mazgch/cdc_workaround

Workaround for stalled CDC bulk out endpoint
Improve Flash Algorithm Generation script
fix flashing msd led
Merge pull request #5 from mazgch/UART_handling_version_comment

Uart handling version comment
allow bigger htmls
make PIO0_2 open drain
ublox specific functionality (allow to enter crp/isp mode with special file name)
added u-blox secret