skywalking-application-toolkit com.a.eye 2.3-2017 4.0.0 skywalking-toolkit-logback-1.x ch.qos.logback logback-classic 1.1.7 provided org.apache.maven.plugins maven-source-plugin attach-sources jar 2.4 bintray-wu-sheng-sky-walking-repository wu-sheng-sky-walking-repository https://api.bintray.com/maven/wu-sheng/skywalking/com.a.eye.skywalking-toolkit-logback-1.x/;publish=1