Fix unclear comments on serial setup
Open file in binary mode, so it works on windows. Fix from http://www.micromouseonline.com/2009/05/08/stm32-arm-cortex-bootloader/#comment-197
fix "Unknow" typo
Added extended erase (0x44), needed for stm32f2 stm32f4 series
Bootloader command GO, -g <addr>
Add chip id strings
Merge pull request #1 from domenpuncer/master

Sending it back upstream. Support for stm32f2, mostly simple changes.