Document termios flags used
Fix help for --lines
Add -t,--tty
Add TAB
Move score printing into draw_match
Refactor into choices.c
Improve performance of has_match
Remove unecessary has_match test
Add catch /Vim:Interrupt/ to README.md

Seems to be necessary on some systems.
Add fzy.1 manpage
Cleanup headers
Fix divide by zero on empty choices list
Add more tests of choices