add ulimit warning and use class for input
input
Update makefile
minor fixes
Update README.md
Update README.md
Update README.md
Update README.md
debug input buffer
minor fix for manual m parameter
removing debug message
license
minor correction
Update README.md
Update ograph.cpp

Compaction bug correction, output now equivalent to minigraph
fixed a bug where frequent m-mers were incorrectly displayed (without any consequence on the results), thanks to Colleen