Fix Pareto PDF for x=scale

Fixes: https://github.com/jstat/jstat/issues/102
PR-URL: https://github.com/jstat/jstat/pull/116
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Refactor distribution tests to multiple files

PR-URL: https://github.com/jstat/jstat/pull/115
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Add additional vector functions

Add histogram() to get histogram/bin count data, kurtosis() and
skewness().

PR-URL: https://github.com/jstat/jstat/pull/111
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Update dist/
Now working on patch 1.0.11