Compile with SMALL=1 to make binary fit in memory

examples/sky-shell-webserver/Makefile

@@ -2,7 +2,9 @@ CONTIKI_PROJECT = sky-shell-webserver
 all: $(CONTIKI_PROJECT)
 PROJECT_SOURCEFILES = webserver-nogui.c
 HTTPD_CFS=1
-CFLAGS = -DWITH_UIP=1 -DWITH_NULLMAC=1
+CFLAGS = -DWITH_UIP=1
+DEFINES=NETSTACK_MAC=nullmac_driver,NETSTACK_RDC=nullrdc_driver 
+SMALL=1
 
 CONTIKI = ../..
 APPS = webserver serial-shell