Added support to program Z1 far memory with BSL
Support verbosity control when building for STM32W-based platforms
OBJECTDIR is defined by Makefile.include
Set the RAM and flash size based on the CPU configuration for STM32W
rpl_select_parent: Only check parents belonging to the given dag
Remove duplicated configuration parameters definition
Add user configuration of DIO preference field
Merge pull request #651 from cetic/pr-rpl-private-cleanup-fix

Remove duplicated RPL configuration parameters definition
Merge pull request #630 from blemmens/z1-bsl-far-memory-support

Added support to program Z1 far memory with BSL
Adjustment to cc65 change.
Merge pull request #668 from oliverschmidt/master

Adjustment to cc65 change.
Merge pull request #632 from nfi/verbosity-control-stm32w

Add support for verbosity control for building STM32W-based platforms
Merge pull request #649 from cetic/pr-dio-preference-fix

Add user configuration of DIO preference field
Merge pull request #647 from cetic/pr-select-dag-fix

rpl_select_parent: Only check parents belonging to the given dag
'free_packet' in csma.c conflicted with 'free_packet' in maca.c
llsec: Added a layer in between NETSTACK_MAC and NETSTACK_NETWORK for implementing link layer security
llsec: Configuration option for defining a constant LoWPAN-wide security level
Sky: Calling NETSTACK_LLSEC.bootstrap from contiki-sky-main.c
Sky: DEBUG on/off switch
packetbuf: Made packetbuf_hdrlen applicable to inbound packets, too