added new "distinct" operation to groupBy.
Added LICENSE (MIT) and updated banners.
include tweaks provided by Adam Huffman.
Added collapse and concat to README.
Silence compiler warnings. Thanks to Jason Stajich.
Added concat operation to groupBy
Don't do "mean" by default in stats.
Added stats to the project and allowed it to use multi-column input.
Added "stats" to the project
Improved help for shuffle.
Added "shuffle" to filo.
Initial version of shuffle added.
Added checks to create obj/ and bin/ when Making.
filo now includes Assaf Gordon's update to groupBy (formerly in the BEDTools package)
Replaced README with README.rst