Merge pull request #47 from matthayes/master

Improve documentation of util and linkanalysis packages
Merge pull request #48 from matthayes/master

Make sure fastutil classes are packaged
Merge pull request #49 from matthayes/master

More set unit tests
create a transpose udf and add tests
fix exception class to frontend
Merge pull request #50 from william-g-vaughan/master

Add transpose UDF