sncf.c/h: finalised parse function to sncf_parse_train_info()
sncf.c: added sncf_print_train_info()

main.c: comply with sncf.c changes
include/dbg.h: make DEBUG not default
Makefile: add debug target
sncf.c: moved logic from main.c to sncf_post_form()
sncf.c: sncf_find_next_results() will find the summary node by itself

sncf.c: added logic for weirdness in header containing journey date

sncf.c: check that we find exactly 4 rows ISO just any amount > 0

main.c: cleanup after having everything in sncf.c