parser skeleton
parse_auto
"Pat" syntax (WIP...)

Closes #7
online interpreter
ignore callback
use menhir
Don't preprocess mly / mll
fix doc generation
remove mention of main_loop
test syntax
test parse_pat_string
test parse errors
use parse_auto for parse_example
update contrib guide
test highlight
use OUnit.cmp_float

Closes #30
add speed to syntax
NoDir -> None
CSS tweaks
just build lib with -init