make TT_USER > TT_ERR, remove TT_MAX
Merge pull request #23 from pesco/tt_user

make TT_USER > TT_ERR, remove TT_MAX
Merge pull request #24 from pesco/base64-example

Base64 example
Merge pull request #25 from pesco/fix-whitespace-end

allow h_whitespace(p) to succeed on end of input if p succeeds
add trivial left-recursion test case
initialize involved_set to an empty HList, not NULL
initialize eval_set to a proper copy of involved_set
fix a loop in setupLR
fix expected value of first leftrec test case
Merge branch 'fix-left-recursion' into base64-example
parse whole input and allow surrounding whitespace in base64 example