removed duplicate #define
reworked old code (rawc.c)
add dependency to binary blobs
typo
use libwebsocket's log system in libgate
in serial comm:
use flock()
check presence of lib-lockdev in Makefile, warn if absent, use it if present
todo and typos
add embedded feature to libwebsockets' example

tried but could not update CmakeLists.txt to call
make-embedded-source-files after rawc.c is compiled and before
test-server-extpoll-embed is compiled.
sync with Andy Green's original repository