Remove unused Service-Component header from the eclipse-m2e-ui bundle

git-svn-id: https://svn.apache.org/repos/asf/sling/branches/tooling-ide-vlt@1525576 13f79535-47bb-0310-9956-ffa450edef68
Centralize maven-compiler-plugin configuration

git-svn-id: https://svn.apache.org/repos/asf/sling/branches/tooling-ide-vlt@1525577 13f79535-47bb-0310-9956-ffa450edef68