Upgraded maven-surefire-plugin from 2.15 to 2.16
Upgraded maven-failsafe-plugin from 2.15 to 2.16
Upgraded maven-javadoc-plugin from 2.9 to 2.9.1
Upgraded maven-shade-plugin from 2.0 to 2.1
Upgraded maven-checkstyle-plugin from 2.9.1 to 2.10
Upgraded maven-pmd-plugin from 2.7.1 to 3.0.1
Upgraded cobertura-maven-plugin from 2.5.2 to 2.6