Fixed include paths for old tools directory, now get current instance DIO interval in rpl_log rather than store it in a seprate variable
Remove local rpl-private.h, cleanup rpl-timers.c
Remove local contiki-net.h and neighbor-attr.c
Cleaned up sicslowpan.c
Cleanup up tcpip.c
Cleanup uip-ds6.c
Delete unneeded local uip-ds6.h
Cleanup uip-nd6.c
Uncomment ND-code, as we can now disable it from macro in contiki 2.7
Moved logging and configuring code that are specific to the example app into the example subdirectory