update klib
allow undefs, always have a key present regardless if no value returned
remove Klib.pm
Kseq, not Readfq
comment out funky sections of code NRFU
add a few TODOs
amend README
remove extraneous code for now
add in code for kstring_t, kstream_t; Bio::Kseq returns a file handle (Bio::Kseq::Fh)
comment out kstring_t code; no need to expose that API for now; add simple debugging msgs
main leak seems to be addressed, still seeing small leak at end; may set up author test to see if this can be checked maybe via Travis-CI
mortalizing the HV and returning a SV* fixes this; always fall back to perlxstut