Merge pull request #209 from jehoffmann/master

Added support for ST nucleo devices.
Merge pull request #210 from jehoffmann/master

Added STM32F401RE chip id.
Update MinGW instructions for USB 3.0 hub support.

Report libusb_open() error code to the user.
Merge pull request #212 from dandev37/mingw

Update MinGW instructions for USB 3.0 hub support.
Update stlink-common.h

Adding support for STM32F07x CAN connectivity devices
Update stlink-common.c

Adding support for STM32F07x CAN connectivity devices
Update stlink-common.c

fix typo
Merge pull request #213 from tekaikko/master

Support STM32F07x devices
* Improved support for STM32L152RE - flash/ram sizes, now correct, flash programming works.
* Cleaned up checking of FP_CTRL register in gdb-server.c
* Added source code for stm32lx.s flashloader - just for reference.
Merge pull request #214 from sbsimmons/master

Add support for STM32L152RE (Nucleo-L152RE)
Fix segv if only --reset option given

We didn't recheck that there are enough parameters after shifting the --reset option off the list.
Merge pull request #215 from petiepooo/patch-1

Fix segv if only --reset option given
[ update ] flash support for the STM32F401XX (installed on the nucleo F4 boards)