Reportal: Don't send emails if Hive output has 1 line (which are column names)
Updated hadoopsecuritymanager JAR
Improved ReportalUtil.sortExecutableNodes() method; added unit tests for it
Added Reportal unit test directory (which I forgot to add in my last commit)
Merge pull request #38 from Erwa/master

Reportal: Treat 1-line Hive query outputs as no results, since first line is column names

Looks good. Merging.