Added CMSIS files for Freescale KL43Z ARM
[API] Timer-start behavior (bug)fix

Only start the timer when it is not running currently. In old behavior
the current slice-time was discarded, now multiple starts have no
effect.
Add BSD license to NVIC_SetVector and NVIC_GetVector.
Revert "Added CMSIS files for Freescale KL43Z ARM"

This reverts commit 94581919bde26c093ad791025324af1471f89bd5.
Add HAL for Freescale KL43Z
Merge remote-tracking branch 'upstream/master'
Added spi_api.c and gcc_arm_kl43z.tmpl files. Fixed some issues in KL43Z target
[cmsis_nvic] correct typos and stray character
[PROJECT.py] sorts targets and toolchains for help option

Sorts targets and toolchains for help option and adds new option -L to
generate the list with possible projects to generate.
Added LPUART support and fixed a many errors in KL43Z target
Added USB Device support for KL43Z
[NUCLEO_F411RE] Adapt python script + CMSIS files to build/export to IAR
[PROJECT.py] adds cmdline option to use program_name instread of program_id
[PROJECT.py] add option 'clean'

Adds the cmdline option clean (to clean the export folder) and some
minor things (spelling and option order).
[NUCLEO_L152RE] Migration to STM32Cube driver
HAL: STM32F407VG - removal of nucleo folder caused by commit 8df74cfcda368
[MAKE.py] additional error handling when missing an option in private_settings.py

Adding an error handling.

make.py with the option -n PROGRAM_NAME wants to have a test_alias
variable in private_settings.py. Without this alias and with a wrong
PROGRAM_NAME an error message is generated because of a missing else
branch.
STDIO_UART_xx in peripheralnames.h
[NUCLEO_F411RE] remove iar_nucleo_f411re.ewp.tmpl.old file
[PROJECT.py] removed the sys.exit() after cleaning