v0.4.0
fstrm_replay: use analagous options to fstrm_capture.
Add tests for fstrm_capture, using fstrm_relay as client.
t/run_test_*.sh: fix DIRNAME calculation
t/test_fstrm_io_unix.c -> t/test_fstrm_io_sock.c
massive refactoring of the library
t/test_file_hello: perform a double call to fstrm_writer_open()
Support systems without clock_gettime()
update copyright years to add 2018 for some source files