* src/Makefile.am: Fix rule to auto-generate ttt-lex.h.
* src/ttt-lex.h: Remove generated file from revision control.
* src/ttt-lex.l: Add copyright/license blurb.
* src/ttt-lex.l:
* src/ttt-client.c: (yy_init_globals), (use_yy_init_globals):
Shut off some annoying compiler warnings due to flex bugs (only
one still remains).