BYTEMAN-242 update to add failOnWarning and expectWarnings.
moved to correct package and corrected error introduced into logic of
test for errors
modified pom.xml for sample project so runs the plugin and added README
Merge pull request #20 from zhfeng/BYTEMAN-242

BYTEMAN-242 Add failOnWarning and expectWarnings options in the maven plugin
fix for BYTEMAN-230 courtesy of Richard Opalka