- Upgrade of the following plugins:
  maven-assembly-plugin 2.3 to 2.4
  maven-changes-plugin 2.7.1 to 2.8
  maven-compiler-plugin 2.5.1 to 3.0
  maven-dependency-plugin 2.5.1 to 2.6
  maven-failsafe-plugin 2.12.4 to 2.13
  maven-surefire-plugin 2.12.4 to 2.13
  maven-javadoc-plugin 2.8.1 to 2.9
  maven-project-info-reports-plugin 2.5.1 to 2.6
  maven-release-plugin 2.3.2 to 2.4
  maven-surefire-report-plugin 2.12.3 to 2.13

  versions-maven-plugin 1.3.1 to 2.0

- Fixed link to issue tracking system.
- Fixed configuration for maven-pmd-plugin