[KARAF-2703] Upgrade to maven-assembly-plugin 2.4
[KARAF-2704] Upgrade to maven-compiler-plugin 3.1
[KARAF-2705] Upgrade to maven-dependency-plugin 2.8
[KARAF-2706] Upgrade to maven-deploy-plugin 2.8.1
[KARAF-2708] Upgrade to maven-enforcer-plugin 1.3.1
[KARAF-2709] Upgrade to maven-idea-plugin 2.2.1
[KARAF-2710] Upgrade to maven-install-plugin 2.5.1
[KARAF-2711] Upgrade to maven-javadoc-plugin 2.9.1
[KARAF-2713] Upgrade to maven-jxr-plugin 2.4
[KARAF-2714] Upgrade to maven-project-info-reports-plugin 2.7
[KARAF-2715] Upgrade to maven-release-plugin 2.4.2
[KARAF-2716] Upgrade to maven-remote-resources-plugin 1.5
[KARAF-2717] Upgrade to maven-resources-plugin 2.6
Remove maven-shade-plugin (not used)
[KARAF-2719] Upgrade to maven-site-plugin 3.3
[KARAF-2720] Upgrade to maven-source-plugin 2.2.1
[KARAF-2721] Upgrade to maven-surefire-report-plugin 2.16
[KARAF-2722] Upgrade to maven-war-plugin 2.4
[KARAF-2723] Upgrade to maven-rat-plugin 0.10 and fix issues detected by rat
[KARAF-2724] Upgrade to build-helper-maven-plugin 1.8