New struct coap_binary_t - same as coap_string_t, used for tokens
Deprecate struct str with the intent of removing it downstream as it
polutes namespace.
Make end of coap_string_t data a NUL.
Updated coap_make_str_const(), removing .length= and .s= to keep upstream
compilers happy.
Update Doxygen for str.h
Files:
examples/client.c
examples/coap-rd.c
examples/coap-server.c
examples/contiki/server.c
examples/etsi_iot_01.c
include/coap/resource.h
include/coap/str.h
include/coap/subscribe.h
man/coap_observe.txt.in
src/net.c
src/resource.c
src/str.c
src/uri.c
tests/test_options.c
Update