Upgrade to AntRun Maven Plugin v1.7

• Bug
  • [MANTRUN-159] - Error in "Referencing the Maven Classpaths" documentation
  • [MANTRUN-160] - maven-antrun-plugin 1.6 does not respect mvn --quiet option
  • [MANTRUN-164] - NullPointer if POM description tag is missing

• Improvement
  • [MANTRUN-127] - provide more tracking info when a task fails
  • [MANTRUN-156] - Plugin documentation refers to "Maven 2"
  • [MANTRUN-162] - Update Ant 1.8.2, avoid insufficient system resources error

• New Feature
  • [MANTRUN-129] - Please add as 'skip' parameter
  • [MANTRUN-158] - Add a new parameter to export Ant properties to Maven properties
  • [MANTRUN-170] - Allow antrun to avoid failing the build