implement multithreaded version of LTRharvest
make LTRharvest output GFF3 on stdout for piping
make LTRharvest output seqids, optionally MD5 tagged
remove dead code
remove test for missing .des table
enable threaded tests for LTRharvest
use regionmappings for LTRdigest
ensure sorting after seed extension
improve duplicate detection
streamline code
documentation
remove debug code
function naming
only try to sort results when there are any
rework and simplify LTRharvest overlap handling
fix OBOE
adjust LTRdigest tests
update LTRharvest manual
minor changes in LTRdigest manual
fix memleaks