[NUCLEOs] Set heap size to 0x400
Merge pull request #449 from bcostm/master

[NUCLEOs] Set heap size to 0x400
Change pins for RBL nRF51822 board.
Merge pull request #451 from Cheong2K/master

Change pins for RBL nRF51822 board.
Merge pull request #2 from mbedmicro/master

Update 2
Added missing macros to symbol list
use target group LPC11UXX
Merge pull request #453 from xiongyihui/usb

[USBDevice] use target group LPC11UXX instead of LPC11U24 or LPC11U35_501
[NUCLEO_L053R8] Fix bug and improvement of AnalogIn
Merge pull request #455 from bcostm/master

[NUCLEO_L053R8] Fix bug and improvement of AnalogIn
Fixed pins for RBL nRF51822 board.
Fixed pins for RBL nRF51822 board.
Merge pull request #458 from Cheong2K/master

[RBL nRF51] Fixed pins for RBL nRF51822 board.
[NUCLEO_F072RB] Improvement of Serial hal
[NUCLEO_L053R8] Improvement of Serial hal
[NUCLEO_F334R8] Improvement of Serial hal
add USBDevice library support for DISCO_F407VG
add target ARCH_MAX, a variant of DISCO_F407VG
Merge pull request #459 from bcostm/master

[NUCLEOs] Improvement of Serial hal
Merge pull request #452 from PrzemekWirkus/macros-missing

Macros are not passed down to toolchain for compilation