Merge pull request #6 from funkysash/master

Added support for Catena-DBG(Double Butterfly Graph) and 32Bit.
Merge pull request #7 from funkysash/master

Improvement of Catena-DBG and Makefile fixes
Merge pull request #8 from funkysash/master

minor changes as requested
Merge pull request #9 from funkysash/master

fixed possible missinterpretation of  hashlen when using the PHS interfa...
Added additional check for lambda=0.
Adjust bin path.