Moved inclusion of PROJECT_CONF_H to top of contiki-conf.h.
Only define NETSTACK_CONF_RDC, if not already done, e.g by sniffer.
Merge branch 'avr-meshthing' of https://github.com/geekscape/contiki into example-meshthing-initialize
Changed "run.sh" shell interpreter to "bash" (to keep Ubuntu happy).