More changes to LPC3450 pin configuration:  The hardware ETM pins will not toggle unless the SLEW FAST bit is set.  From  Alessandro Temil.

SAMD21: Last fix to header files caused a compile problem because logic used a value which is no longer available for the SAMD21

Add support for a BOARDIOC_RESET boardctl() command.  Enable configuration options to support BOARDIOC_RESET for ARMv6-M and ARMv7-M

Simulatin:  Save the intial terminal mode and restore this before terminating.  Otherwise, the NSH shutdown command leaves the console in raw mode

sim configuration: Add support for board_app_initialize() which is needed when CONFIG_LIB_BOARDCTL=y

Fix a Cortex-A compilation error in the vfork() logic when system calls are enabled in modes other than CONFIG_BUILD_KERNEL.

arch/arm/src/sama5/sam_ehci.c:  Fix some bad conditional compilation that left a function undefined if CONFIG_USBHOST_ASYNCH is not selected.

Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation

Back out another error introduced with commit 02c33f66c5a8be774034cd40e4125e9323c7b4d8. Causes an infinite loop in up_lowputc().

Remove conditional logic form non-SAM4CM parts (Gregory Nutt)

Back out an error introduced with commit 02c33f66c5a8be774034cd40e4125e9323c7b4d8.  Causes an infinite loop in up_lowputc().  From Max Neklyudov.