Update raven-logback pom to use parent pom 2.0-SNAPSHOT
Update raven-logback pom to use parent pom 2.0-SNAPSHOT

reki2000/raven-java6,reki2000/raven-java6,buckett/raven-java,buckett/raven-java,littleyang/raven-java,littleyang/raven-java,galmeida/raven-java,galmeida/raven-java