removed leading / from well-known URI constant
removed leading / from well-known URI constant

gebart/libcoap,fredericgermain/libcoap,pabigot/libcoap,authmillenon/libcoap,gebart/libcoap,nmacs/libcoap,authmillenon/libcoap,gebart/libcoap,alexaring/libcoap,OlegHahm/libcoap,markushx/libcoap,RIOT-OS/libcoap,nmacs/libcoap,joaopedrotaveira/libcoap,alexaring/libcoap,thecodemaiden/libcoap-fork,fredericgermain/libcoap,OlegHahm/libcoap,pabigot/libcoap,markushx/libcoap,fredericgermain/libcoap,OlegHahm/libcoap,thecodemaiden/libcoap-fork,sgso/libcoap,authmillenon/libcoap,alexaring/libcoap,markushx/libcoap,sgso/libcoap,nmacs/libcoap,sgso/libcoap,pabigot/libcoap,joaopedrotaveira/libcoap,joaopedrotaveira/libcoap,PolymorhicCode/libcoap,RIOT-OS/libcoap