Update pom.xml
Update pom.xml

Update antlr version in pom.xml to fix build error when building with Java 8
https://github.com/antlr/antlr3/issues/151
daliwei/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,killbill/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,killbill/killbill-analytics-plugin,kisdead/killbill-analytics-plugin