[MCOMPILER-166] Use plexus-compiler 1.8.6 for performance improvement use snapshot version for testing.
[MCOMPILER-166] Use plexus-compiler 1.8.6 for performance improvement
use snapshot version for testing.

git-svn-id: 6038db50b076e48c7926ed71fd94f8e91be2fbc9@1295629 13f79535-47bb-0310-9956-ffa450edef68

khmarbaise/maven-plugins,khmarbaise/maven-plugins,khmarbaise/maven-plugins