Upgrade to Maven Compiler plugin 3.6.1

Release Notes - Maven Compiler Plugin - Version 3.6.1

** Bug
    * [MCOMPILER-282] - Remove link to non-existing Codehaus wiki
    * [MCOMPILER-284] - maven.test.skip doesn't skip test compilation
    * [MCOMPILER-287] - Adjust documentation module-info

** Documentation
    * [MCOMPILER-281] - Remove reference to Maven 1's Java plugin

** Improvement
    * [MCOMPILER-285] - Support test-compile for JDK 9 build b148+

Release Notes - Maven Compiler Plugin - Version 3.6.0

** Bug
    * [MCOMPILER-253] - testCompile (3.x) may not display error message when fork=true
    * [MCOMPILER-260] - Incorrect <compilerArgs> behavior when multiple number <arg>'s have the same value
    * [MCOMPILER-269] - Support modulepath (Java9/Jigsaw)
    * [MCOMPILER-279] - Passing multiple --add-exports args to the compilerArgs is not supported

** Improvement
    * [MCOMPILER-267] - Compiler plugin could have failOnWarning option
    * [MCOMPILER-273] - Upgrade maven-shared-utils to 3.1.0

** New Feature
    * [MCOMPILER-270] - Support release=8 on JDK 9 (with fallback on source=8 and target=8 on JDK 8)